Moltenstorm Dragon

Flying, haste
Prowess
Whenever Moltenstorm Dragon enters the battlefield or attacks, reveal the top card of your library. If it is an instant or sorcery, put it in your
hand then shuffle. Otherwise exile it and add {r}{r}{r}. Until end of turn Moltenstorm dragon's
power is equal to the converted mana cost of the instant or sorcery revealed this way.