Al Ed-In, the Lizard Wizard

When Al Ed-In, the Lizard Wizard attacks and isn't blocked, you may pay {r} and exile a Lizard card from your hand. If you do, Put a 5/3 red Lizard Warrior creature token onto the battlefield tapped and attacking.
When Al Ed-In or a Lizard creature you control enters the battlefield, at the beginning of the next end step, you may search your library for a Lizard card, reveal it, and put it into your hand. If you do, shuffle your library.