Raiden, Archon of the Storm

Prowess, Shogun's honor - - (Once per turn, if
Raiden killed a creature an opponent controls this
turn, you may cast a noncreature spell from among
cards in your hand without paying its mana cost.)

Instant and sorcery spells you cast have Storm.

{w}{u}{b}{r}{g},{t} - search your library for 3 noncreature spells, put those cards into your hand
and shuffle your library.