Greenwheel Liberator

The bargain Revolt offers is precise: arrange for something to leave your battlefield earlier in the turn, and a 2/1 becomes a 4/3 for two mana. Whiff the condition and you have a body that trades down to almost anything. The interesting part is where the ability checks: it is a static replacement effect that reads the board the moment the creature enters, not when you cast it, so the entire puzzle is the order of operations within your own turn. A fetchland crack, a sacrificed token, a creature that died in earlier combat, anything that vacates a permanent under your control flips the entry from undersized to oversized for the rate. That conditionality is the design tension: Revolt asks you to spend resources you were already planning to spend, then pays out only if you spent them in the right window. The payout arriving as two +1/+1 counters rather than a static pump matters for what it stacks with: anything that cares about counters already on the board can build on them, and the size persists rather than evaporating when a temporary buff would wear off. It rewards a deck constructed to shed its own permanents on purpose and punishes a passive one; in a shell that cannot reliably switch the condition on, you are casting a fragile two-drop and hoping the turn cooperates.