Both sides of Valki are excellent, with Valki being hand disruption useful in the early game to steal a powerful creature (with the potential to turn into it later), while Tibalt is a great end-game card, capable of removing multiple creatures and stealing cards from your opponents' libraries to cast yourself
Trust me this doesnt even scratch the surface of what this card can do
1 Edgin, Larcenous Lutenist Leader of the party and versatile Bard of the group, Edgin, Larcenous Lutenist does a lot of neat things for a red and blue legendary creature
Kaheera, the Orphanguard is a cat beast
Maintaining a large mana base, along with the Treasure tokens, is one of the cornerstones of the deck, especially later in the game when many cards have already been exiled
The card's color is also black and blue because those are the colors in its casting cost