Criatura — Víbora hongo
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Siempre que un oponente lance un hechizo azul o negro, puedes poner un contador +1/+1 sobre la Culebra del moho.
If an opponent casts a blue or black spell, Mold Adder’s ability triggers and is put on the stack on top of that spell. Mold Adder’s ability will resolve before the spell does.