Card: Root-Kin Ally
Casting Cost: 4GG
Color: White
Type: Creature - Elemental Warrior
P/T: (3/3)
Rules Text: Convoke (Each creature you tap while casting this spell reduces its cost by {1} or by one mana of that creature's color.) Tap two untapped creatures you control: Root-Kin Ally gets +2/+2 until end of turn.

Ravnica: City of GuildsUncommon