Eli Thunderstrike <Sky'ree's Keeper> is a Wildhammer dwarf who lived in Wildhammer Stronghold, in Outland's Shadowmoon Valley. Thunderstrike was the keeper of Sky'ree, the legendary gryphon of the equally-legendary gryphon rider Kurdran Wildhammer. Thunderstrike tended to the gryphon while Kurdran tended to business at the Stronghold.
Thunderstrike followed Kurdran back to Azeroth after the Cataclysm to tend to Sky'ree and the other gryphons in Kurdran's group of riders. He witnessed the tragic death of Sky'ree and brought her last surviving egg to Kurdran who thought it had been destroyed in the fire that killed her.