Cacophony

{2}{u}, Discard Cacophony: Draw a card.
{w}, Sacrifice Cacophony: Return target
enchantment card from your graveyard
to your hand.
{b}, Exile Cacophony: Return target creature
card from your graveyard to your hand.
Whenever Cacophony is put in exile this turn,
you may pay {r} and put it in your graveyard
instead.

What's going on? I tried to keep track, but it's just too much!