Sarkhan's Dragonfire 
Sorcery
Sarkhan's Dragonfire deals 3 damage to any target. Look at the top five cards of your library. You may reveal a red card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL