In my Elf Commander Deck (edited version of the Guided by Nature 2014 Commander Deck), I have Nissa Revane and as I was looking through the MTG tag of BCGSE I saw this question asking about if elves summoned with Nissa's -7 ability have summoning sickness. Since the answer is yes, I was wondering if there is a green or colorless card that I would be able to use to counter their summoning sickness (preferably an elf that grants other elves haste). Is there a card that would be able to fit into the restrictions of my deck?
A simple search for cards with the words "creatures" and "haste" in their text boxes reveals a couple cards with Green color identity that grant mass haste:
- Akroma's Memorial is an artifact that grants your creatures Haste, along with a few other abilities.
- Concordant Crossroads grants all creatures Haste, not just yours.
- Reflex Sliver gives all your Slivers Haste and Hivestone makes all your creatures Slivers, so together they give all your creatures Haste.