Darkbeast Paarl

When you cast an instant or sorcery spell, put a charge counter on Paarl.
{t}; remove a charge counter: Paarl deals 1 damage to all other creatures.
{t}; remove two charge counters: Paarl deals 3 damage to any target.
{t}; remove three charge counters: Paarl deals 3 damage to all other creatures and players.