Background: I'm currently writing a strategy guide for magic as my pet project, and I'm trying to explain decks with multiple colors. Here's what I have so far:

Dual color decks are useful because they allow you to take advantage of the best of 2 different colors instead of just 1. This allows you to minimize the weaknesses a mono-colored deck might normally have. For example, red decks usually have trouble dealing with enchantments, blue decks tend to have pretty bad creatures, green decks tend to be fairly bad with removal spells, etc. When combined with another color, most of these disadvantages are drastically reduced as you can use cards from each color to compensate for the other's weaknesses.

Some decks also have more than 2 colors, although they are much less common. With 3 colors your deck will have plenty of options to reduce the shortcomings of any individual color as odds are there's a card in at least one of the other colors you're playing that will fill that gap nicely. The downside of a tri-color deck is that it's substantially more difficult to get the mana you need to play the cards in your hand. This means you'll need to devote more of your deck to cards that can generate mana of multiple colors, which detracts from your overall focus of getting cards out onto the field that actually win the game for you. Tricolor decks often include green because it is the best color for generating mana in its own and other colors, making it great support for the rest of the deck. These decks often rely on tricolor spells for finishers as they are often extremely powerful to make up for the difficulty of casting them, to the point where some can almost win the game on their own.

Decks with more than 3 colors are extremely rare as there is usually relatively little advantage a 4th color will add that couldn't be covered by the others, and it is VERY difficult to create a successful 4 color mana-base that will let you play all of the cards you need to in a timely fashion.

When I read this, it sounds like I'm saying "Tri-color decks are bad because they're so hard to get to work correctly and people only play them because of powerful gold cards." However, I'm pretty sure this isn't true and is stemming from my own lack of experience with tri-color decks.

Question: Why would you want to play a tri-color deck? What advantages does adding the third color often add that makes the deck better than if it only had 2? What should I add to this section of my strategy guide to make it a little more complete/useful?

  • 1
    I cant speak for everyone else, but most of my decks tend to be at LEAST 3 colors. And a good amount of them are all five. It can totally work well, if you build right for it.
    – Ender
    Mar 6, 2012 at 13:56
  • Very related: boardgames.stackexchange.com/questions/47926/… It's not the same question, but the answer is almost the same. Tri-color decks gain by being able to play more of the best cards; they lose by having more demanding mana requirements. If a deck cannot meet the color requirements to cast its cards, it would usually run fewer colors. If everyone had access to 5-color, no-drawback lands, every deck would be playing five colors.
    – Allure
    Dec 12, 2020 at 20:58

6 Answers 6


Your mana base is the chief constraint, but it's not always as restrictive as you think.

This really depends on the format and your budget, but, sometimes, it's really not "substantially more difficult to get the mana you need to play the cards in your hand" with a three-color deck.

In something like 20 playtest games with Domain Zoo, which is (albeit nominally) a five-color deck, I never once got color-screwed. The fetches+shocks mana base was just that good. Why did the deck play a fourth color? Because Dark Confidant, by itself, was worth it. Why did the deck play "Islands"? To get 1 point of extra damage out of Tribal Flames.

How far you can push the color distribution in your deck depends on the particular mana base available to you, and the overall "speed" of the metagame (which determines whether you can afford to devote your early turns to playing tapped lands like Zagoth Triome or color-fixing spells like Farseek).

In Scars + Innistrad Standard, the distribution of multi-colored lands (one cycle of allied-color "fast" duals in Scars, one cycle of allied-color "buddy" duals in M12, one cycle of enemy-color "buddy" duals in Innistrad; Evolving Wilds as the only fetchland) makes a friendly-color three-color mana base comparable to an enemy-color two-color deck's. The reason most tournament decks are playing two allied colors instead is that this lets them cut colored-mana lands to run more utility lands like Nephalia Drownyard, Moorland Haunt, and Kessig Wolf Run + Inkmoth Nexus, which are some of the best ways to add depth and resilience to your deck.

Indeed, it's when you need your lands to do something special that you're most constrained on colors. Some examples:

  • Valakut, the Molten Pinnacle requires lots of Mountains to operate. Valakut, the deck, consequently, had a pretty awful mana base for a two-color deck, because most of the cards were green but the deck needed to max out on plain old basic Mountains to do get its combo.
  • A deck with Dungrove Elder will want copious Forests regardless of its color distribution. If you pick him in M12 draft but can't force mono-green, it still behooves you to play as many Forests as reasonable if you want to make use of the Elder.
  • Vedalken Shackles is, sometimes, considered reason enough to go mono-blue all by itself.
  • Tron devotes half its lands to the (colorless) Urza's lands, leaving it with very starved for colored mana. Balancing two colors and a ton of colorless lands is actually much harder than getting a working three-color mana base, because there's not a lot of flexibility in how you can pay for your spells.
  • Metagame-hater decks playing lots of non-basic-land hate (e.g. Back to Basics, Ruination) can find it limiting their own mana base.

The main benefit is, as you said, access to stronger and more varied cards.

Some prominent historical examples of very different applications:

For a more recent (2012) example, consider control in Scars + Innistrad Standard. These days, blue-based control decks usually use other colors to supplement their counterspells with strong finishers and removal. Assume you're choosing between U/W, U/B, or W/U/B ("Esper").

In the Modern format, where players have access to Path to Exile, the strategic calculus changes: white is just as good, if not better, for powerful spot removal, while black's advantage is powerful targeted discard (Thoughtseize, Inquisition of Kozilek). At the tournament level, it only takes a few strong cards to effectively shift the color pie.

  • 4
    Great mini-essay there, easy +1. I even like the (presumably unintentional?) "plane old basic Mountains" pun... Feb 29, 2012 at 10:52
  • I originally wrote that you "can't deal with" utility lands without Ghost Quarter, but that's not really accurate: you can't remove them directly, but you can nullify their abilities, e.g. using Spellskite to stop Wolf Run or graveyard removal to shut down Moorland Haunt.
    – Alex P
    Mar 6, 2012 at 15:13
  • I'd love to fix the plain/plane error, but that is not enough characters, could someone do it when they have another edit to do.
    – LovesTha
    Mar 21, 2016 at 23:41
  • 2
    @LovesTha Well, someone who's actively playing Standard right now can rewrite the "modern-day example" to be something fresher than five-year-old Esper. (I'm not the person to do it, at the moment, but anyone who wants to 100% has my blessing!)
    – Alex P
    Mar 22, 2016 at 0:18
  • 1
    @AlexP I'm not a pro player, but the deck shows up with great regularity in ranked MTGA constructed games at the diamond tier level. Does that count as confirmation?
    – Wildcard
    Dec 12, 2020 at 22:20

Alex P's answer is fantastic, but I think I can add to it somewhat.

Limited: You mentioned limited in your answer, and in limited it is very frequently necessary or nearly necessary to play 3 colors to get decent cards. Of course even then your third color should often be a "splash" with just one or two cards and keep a heavy emphasis on the two primary colors. Even when I could make a decent 2 color deck in limited, I am willing to splash a third color if it gets me a good removal card..

Constructed: Alex P covered this one far better than I ever could, but I'll add that if green is one of your primary colors it becomes much easier to support a third color.

Casual: This probably does not matter much if you are writing a strategy guide, but in casual play a lot of decks have themes or self imposed constraints that nudge them towards more colors. I used to have a 5-color dragon deck. Most of the cards in the deck were mana fixers/accelerators and the rest were dragons. It hardly ever won, but it was fun to play and when it did win it was because I hard cast a massive dragon that proceeded to eat my opponent. I also had a 4-color (no blue) angel deck that did a bit better than the dragon deck, but was also fun in a casual sort of way.

Format: Ok, this is obvious, but I'll say it for completeness. Some formats (prismatic, etc) require multiple colors. Also, some blocks encourage it. Many Ravnica block decks benefitted from a third color.

  • 2
    During Dark Ascension prerelease Sealed, I pulled two Evolving Wilds, which allowed me to run a solid two-color deck plus 1x of any land I needed to pay flashbacks. It was wonderful.
    – Alex P
    Feb 29, 2012 at 18:47
  • Ravnica isn't the best example for blocks to encourage using a third color - Tarkir, with it's three color Khanates is a good one, but the best one of all is Alara, the block containing the only set in Magic where every single card was at least two colors, Alara Reborn.
    – Andrew
    Feb 5, 2022 at 5:57

I'll add just a little bit to what Alex and Timothy already said: multiple colours decks are playable with no huge problems, especially if you limit the cards with high casting cost in one specific colour. Several legendary cards have multiple colour casting cost and... they are there to be seen in play!

I think multi-coloured decks are special fun when you construct a combo deck (that, let's say, grants you automatic victory when you manage to play the combo-cards together) around a three cards combo, where the cards are of three different colours. If black is not one of that three colours, you may want to add also that four colour just for adding Demonic Tutor, etc.

In general, being this a card game that you play for fun and to confront different playing styles, having more colours may be fun and add to the variety of the game, otherwise everybody would play the very same deck that won last world championship or so ;-)


Another example that Alex P didn't cover is that adding another color can, in the right application, make your deck a lot more powerful. Consider all of the flackback costs in Innistrad and Dark Ascension. A decent amount of them are off-color of the main casting cost of the card. If you don't play the right colors, the card is a one-off. However, if you play both colors then the card is a two-fer, giving you a decent amount of card advantage (especially considering the effect of the flashbacked spell).


As the size of your card pool increases, your ability to support more colors in your deck similarly increases.

You could say the same thing for your ability to consistently kill the opponent on turn 1 before they have even played a card.

The more I play, the more I really appreciate basic land, particularly when it is untapped the turn you bring it into play. It isn't always!

To help understand why you might want to do this, I would suggest you make an enemy color deck, something like white/black or red/blue, and add 1 basic land of the type in the middle of those two.

Add some kind of way to search the whole deck and pull the middle land out and put it into play. Something like Terramorphic Expanse or Rampant Growth.

With the rest of the card slots, try to find some cards that are good without that extra 1 off land being in play, but they would be really good if it was in play.

Something like Ribbons of Night where you get to draw a card for free if you have that land included in the casting cost, but it's castable for the same cost even if you don't have it.

If you build a mana base that's something similar to 10x plains, 10x swamp, 4x terramorphic expanse, 1x island you would be surprised about how consistent it can be while still offering you potentially more raw power.

In a general sense, every time you add a color you are also reducing your deck's consistency. There is no reason to do this in a general sense, unless you get compensation for that.

If you had a deck with 24 mountains and 36 red cards, it wouldn't make sense to change one of those mountains out for an island just for the heck of it. The only reason to do this at all would be that you increased your raw power enough that it was worth sacrificing a little consistency.

It's actually quite easy to do that. That's part of the reason that it would be hard to ever convince me to run a one color deck (especially non-white).

Having a second color adds a lot in the way of raw power without requiring the player to give up much of anything. The card pool is such that one can make ultra consistent 2 color decks. There's essentially no downside to the second color and plenty of upside.

If one is willing to spend a substantial amount of $RL on their mana base, the same thing more or less applies to having three colors as well. It's not possible to make 3 colors as consistent as 2, but you can get in the ballpark at least and it's often worth doing. Many formats are filled with 3 color decks for this reason.

  • "As the size of your card pool increases, your ability to support more colors in your deck similarly increases." The reasons to support more colors in a larger card pool also decreases in this case though, you have more options in each color so less need to go into more colors. - People go into a third (or in some sets fourth) color in limited out of need due to having not enough good, playable cards in two colors in their card pool.
    – Andrew
    Dec 15, 2020 at 21:21

I use a three color deck (white,blue,green). It works well with me because I have worked out a good manna base for every type of deck. on my main I use 45 lands 15 from each color I have in my three color deck .it works really well for me and my strictly 100 card deck

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