Selvala, Eager Trailblazer{2}{G}{W}

Legendary Creature — Elf Scout

Vigilance
Whenever you cast a creature spell, create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
{T}: Choose a color. Add one mana of that color for each different power among creatures you control.

4/5

Illustrated by Viko Menezes