This four-mana black 3/2 gives a target creature an opponent controls -X/-X until the end of turn, where X is the number of permanent cards in your graveyard
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Evolution Sage allows you to proliferate whenever you play a land, rewarding you for an action you would be undertaking anyway
Farewell is possibly the best boardwipe in the whole of commander, with its versatility and ability to exile (not destroy, importantly) whatever you need at that moment while protecting the other types you want to keep around
This is mostly here if cards going in and out of exile become more of a thing, as Ashiok, Wicked Manipulator and Pia Nalaar, Consul of Revival make it seem
Terra in full motion, bursting with confidence and magic