Moltenquill Draconian

Haste, Flying
Whenever Moltenquill Draconian deals damage
to target opponent, you may pay {r}{r}{b}. If you do, discard a card and search your library for a dragon card, reveal it, and put it into your hand. Moltenquill Draconian deals X damage to target opponent where X is half of the converted mana cost of that card rounded down.