Jasta, Primalwalker Mistress

Whenever you cast a multicolored spell, Jasta gets +3/+3 until end of turn.
{2}{r}: Whenever you cast a spell that targets Jasta, Jasta deals 3 damage to target creature or player.
{2}{g}: Whenever you cast a spell that targets Jasta, Beastcall 3
{2}{w}: Whenever you cast a spell that targets Jasta, you gain 3 life.