Signal Flare

Whenever any of your creature is put into the graveyard due to combat, you may pay {2}{r}. If
you do so, reveal the top card of your library
until you discover a creature. Put that creature
into your hand, and the rest of the revealed cards
back into your library. Shuffle your library afterwards.
"Help is on the way!"
- Silsword, Scholar of San Zheng Nation