If youve got a lot of cards that cost six and seven mana, then youve got a high mana curve
Target opponent chooses a creature they control
Card Name Mana Cost Type Creature Human Wizard Rarity Mythic Rare rules Text When this creature enters, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle
His stats are definitely underwhelming, but if players can find a way to utilize him properly, he can allow his player to play a character for free, any time that Mickey banishes another character in a challenge
On the other hand, Arena does not support the Commander format, so Commander-only sets like Warhammer 40K and the Commander decks included in Standard sets are not released on Arena