Invasion of Segovia // Caetus, Sea Tyrant of Segovia
Legendary Creature — Serpent
MOM #63
Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for or one mana of that creature's color.)
At the beginning of your end step, untap up to four target creatures.
