Guiding Bolt 

Instant
Destroy target creature with power 4 or greater. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL