Rafiki

X is the number of cards in your hand+1.
{1}{w}{w}: Gain X life
{1}{u}{u}: Draw a card
{1}{r}{r}: Deal X damage to target tapped creature
{t}, {g}{g}: Add X mana in any combination of
colors to your mana pool
"Oh yes, the past can hurt, but the way I see it
you can either run from it or learn from it."