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.
If the chosen target is an illegal target when Sarkhanâ€™s Dragonfire tries to resolve, the spell doesnâ€™t resolve. You wonâ€™t look at the top five cards of your library.