Elven Warhounds

Most evasion punishes the blocker by going around it; this one punishes the act of blocking itself. The trigger fires the instant a creature is declared as a blocker, and rather than dealing damage or sweeping the board, it tucks that blocker back into its owner's deck. That is a subtle but vicious tax: the blocker survives, but it costs its controller a full draw step to redeploy. Importantly, the tuck does not let the attacker through; once a creature becomes blocked it stays blocked and deals no combat damage to the defending player, even after the blocker leaves combat. So the 2/2 deals no damage that turn, and the whole exchange is paid for in the defender's tempo, not their life total. The catch that keeps the body honest is that the punishment lands on the defender's terms: the controller chooses whether to block, so a savvy opponent simply takes two and keeps their card. Against any creature worth more than a draw step, though, the threat of the trigger reads as functional evasion. It is a delaying tuck rather than removal, which means the answered creature is not gone, just postponed: an unusual middle ground between a Falter-style attack step and a hard kill spell. The result is a green attacker that wins the combat math by making blocking unprofitable rather than by trampling over it.