Sturdy Hatchling [Eventide]

Set: Eventide Type: Creature — Elemental Rarity: Uncommon Cost: {3}{G/U} Sturdy Hatchling enters the battlefield with four -1/-1 counters on it.{G/U}: Sturdy Hatchling gains shroud until end of turn. (It can't be the target of spells or abilities.)Whenever you cast a green spell, remove a -1/-1 counter from Sturdy Hatchling.Whenever you cast a blue spell, remove a -1/-1 counter from Sturdy Hatchling.