Ahn-Crop Invader
Oracle Text
As long as it's your turn, Ahn-Crop Invader has first strike.
, Sacrifice another creature: Ahn-Crop Invader gets +2/+0 until end of turn.
As long as it's your turn, Ahn-Crop Invader has first strike.
, Sacrifice another creature: Ahn-Crop Invader gets +2/+0 until end of turn.
Just having any mana cost in addition to throwing away another resource is a big ask because it puts a limit on what you can do in two directions rather than one.
Bolas must've been chuckling at encasing his fanatics in fools' gold.