Defender

This creature enters with four ice counters on it.

Whenever you cast an instant or sorcery spell, remove an ice counter from this creature. Then if it has no ice counters on it, transform it.

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Awoken Horror

When this creature transforms into Awoken Horror, return all non-Horror creatures to their owners’ hands. “It serves as evidence of the ancient power of the deep, a reminder that the sea is the only thing worthy of reverence.” Runo Stromkirk