If this all sounds confusing, thats because it is
This card has a cost of three ink to play and allows the player to pay two ink to reveal the top card on the deck and put it into their hand if it is a character card or move it to the bottom of their deck if not, once per turn
On top of that, Aurora, Dreaming Guardians three strength and five willpower pair with its two lore to make it a solid card by itself, able to likely withstand a few attacks in the early game - especially given that having Shift 3, allowing you to bring it out on top of another Aurora card for a lower ink cost, means you can have it on the field very early on
The only way Elbrus, the Binding Blade could be playable is if someone stapled a massive 13/13 Demon to the back of it that had flying, intimidate, and trample, and doubled in size when a player lost the game
The point of trading card games is the convenience of being able to play anywhere