Aang, Master of Elements

Flying, Protection from non-creature spells.
Aang cannot be equipped.
{t}: add {w}{u}{r}{g} to your mana pool.
You do not lose mana as phases end, and unspent
mana becomes every color but black.
{t}: you may spend unspent mana; for each White spent, gain 1 life. For each Blue, Scry 1. For each
Red, deal 1 damage to any target. For each green,
put a +1/+1 counter on target creature.