Ifrit, Flame of Kilika

Haste, aeon (When Ifrit enters the battlefield, tap an untapped summoner creature you control. You may choose not to untap it during your untap step. When it becomes untapped or you don't control a summoner tapped with Ifrit, shuffle Ifrit into its owners library.)
{r}:Ifrit gets +1/+0 until end of turn.
When Ifrit attacks, you may pay {r}{r}. If you do, Ifrit deals 2 damage to target creature defending player controls.