Shifting Sands

Shifting Sands is all colors.
If {w} was spent to cast Shifting Sands, gain 3 life;
if {u} was spent, return target creature to its
owner's hand; if {b} was spent, target player
discards a card; if {r} was spent, deal 2 damage to
any target; if {g} was spent, target creature gains
+3/+3.