For example; if my opponent special summon a "Gameciel, the Sea Turtle Kaiju" to my side of the field, then he summon "Dogoran, The Mad Flame Kaiju" and he activates it's effect... Am I able to activate the effect of the Gameciel on my field in response to?

  • Since Dogoran's effect removes the counters as a cost (and Gameciel's too), you would need to remove two additionals counters.
    – RandomGuy
    Apr 15, 2020 at 12:22

1 Answer 1


You sure can! If you control a game object, be it a monster, spell or trap, then you can do with it everything you can do with a monster you summoned yourself.

Note that this includes paying any costs that an effect requires - in your particular case, you'll need to remove kaiju counters from the field to activate Gameciel's effect. Note also that even though you're the controller of Gameciel, your opponent is still the owner, meaning that when it gets destroyed or otherwise sent to the graveyard, it'll go to their graveyard, not yours, or if an effect tells you to return Gameciel to the hand, it'll go to their hand as well.

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