Cast this spell only before attackers are declared.You choose which creatures attack this turn.You choose which creatures block this turn and how those creatures block.
Flash (You may cast this spell any time you could cast an instant.)When Deceiver Exarch enters, choose one —• Untap target permanent you control.• Tap target permanent an opponent controls.
As an additional cost to cast this spell, sacrifice a land.Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.
Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)Each other creature you control enters with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.
TrampleMyriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)
Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)Evincar's Justice deals 2 damage to each creature and each player.