This is the Thijs OTK Karazhan Runic Egg Warrior w Yogg deck list. I didn’t see Runic Egg being played in this deck when it was released but looks like it’s a perfect fit.
Card draw is key to pulling all your combo pieces in OTK decks, so throwing the Runic Egg’s out for 1 mana and then cycling them with the whirlwind effects is sweet synergy.
You can use Runic Egg instead of Loot Hoarders if you have ways of damaging them. They cost one less mana which is a big deal, and if you don’t kill them your opponent likely will anyway.