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Equivalent cards to Stumpsquall Hydra (mono-green, scaling with X in mana cost, enters with +1/+1 counters, and often with a beneficial ETB effect):
1. Primordial Hydra – Enters with X +1/+1 counters, doubles each upkeep.
2. Hydra Broodmaster – Enters with X +1/+1 counters, can make more Hydras.
3. Genesis Hydra – Enters with X +1/+1 counters, can put a permanent from top X cards onto the battlefield.
Reason: All have X in their cost, enter with +1/+1 counters, and are mono-green Hydras with upside.
