Wildgrowth Archaic (PPSOS-168) [Promo Pack: Secrets of Strixhaven]

Trample, reach

Converge — This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.

Whenever you cast a creature spell, that creature enters with X additional +1/+1 counters on it, where X is the number of colors of mana spent to cast it.