Linrek, Everlearning Entity

Sunburst (This enters the battlefield with a charge
counter on it for each color of mana spent to cast it.)
Heroic - Whenever you cast a spell that targets
Linrek, add one charge counter on it for each of
that spell's colors.
Remove a charge counter from Linrek: Choose
one - Linrek deals 2 damage to target opponent;
or Scry 2; or you gain 2 life; or target creature
gets -2/-2; or put a +1/+1 counter on Linrek.