Root-Kin Ally

Creature — Elemental Warrior

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Tap two untapped creatures you control: This creature gets +2/+2 until end of turn.

Illustrated by Arnie Swekel

Ravnica: City of Guilds (RAV)

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