Mighty Mutanimals

In Commander, Mighty Mutanimals earns its slot in any green-or-Gruul shell that cares about +1/+1 counters or generates creature tokens repeatedly — it's not a finisher, but it's the kind of persistent value engine that quietly takes over long games. Constructed formats are a harder sell: Standard and Pioneer have more efficient three-drops that close games or protect themselves, and Mighty Mutanimals asking you to already have a board to maximize the enter trigger is a real ask on curve. Modern and Legacy move too fast for a tap-out three-mana enchantment that doesn't immediately threaten anything. Oathbreaker mirrors Commander's dynamic — if your signature spell generates creature traffic, Mighty Mutanimals scales well.