Curious Homunculus (EMN)

Creature — Homunculus // Creature — Eldrazi Homunculus

: Add . Spend this mana only to cast an instant or sorcery spell. At the beginning of your upkeep, if there are three or more instant and/or sorcery cards in your graveyard, transform this creature. Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost less to cast.

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