Trio of Boulderwell

Whenever you cast a creature spell, put a loyalty counter on Trio of Boulderwell.
{t}, Remove a loyalty counter from Trio of Boulderwell: Add {r}, then Trio of Boulderwell
deals 1 damage to any target.
{t}, Remove 2 loyalty counters from Trio of Boulderwell: Add {u}, then counter target spell.