Qahnaarin, Child Artificer

Reach
When Qahnaarin, Child Artificer enters the battlefield, search your library for Qahnaarins Carpet and reshuffle your library. As long as Qahnaarins Carpet is under your control, Qahnaarin, Child Artificer has Flying.
{x}, Reduce any damage Qahnaarin, Child Artificer would be dealt this round by the amount of mana used to cast this ability.