The digital implementation of Magic The Gathering in MTG: Arena is smooth, responsive, the interface clear, easy to manage and the general balance at least of the current standard is extraordinarily well done
It also copies your stuff and then strips away legendary status, but it also gets the best form of evasion in flying
Banette Ability: Puppet Offering Once during your turn, you may put a Supporter card from your discard pile into your hand
Hold cards securely even when flipped upside-down
Grab a Pikachu with those McNuggets
And while he may only enable you to sacrifice one permanent per turn, team him with sacrifice engines like Viscera Seer, tokens or recurring permanents (like Bloodghast or the cat oven combo of Witchs Oven and Cauldron Familiar) to sacrifice, and drainers like Blood Artist and Mayhem Devil, and things snowball very fast