Bond of Cycles

Exile up to two target cards from graveyards.
Bond - This spell changes modes based on the third
color of mana used to cast it -
{w}: Create a number of 1/1 white spirit creature
tokens with flying equal to the number of
creatures you exiled this way.
{u}: Add an amount of {g} equal to the number of
lands exiled this way.
{r}: Return up to two target cards from your graveyard to your hand.