The Search of Chalkydri's

Rainbow (Spend only colored mana to cast this.
No more than one mana of each color may be spent)
Kicker {w} gains {w} : Reveal the top card of your
library, if it's a creature, gain two life.
Kicker {u} gains {u} : Scry 1.
Kicker {b} gains {b} : Return target creature card
from your graveyard to the top of your library.
Kicker {r} gains {r} : Reveal the top card of your
library, if it's a creature, deal 1 dmg. to any target.
Kicker {g} gains {g} : Reveal the top card of your
library, if i