Your Core Set 2021 booster box has 36 Draft Booster Packs to help fill your deck with classic cards from Magic: The Gatherings Core Set 2021 (M21)
The upkeep cost is real, but even if you just cast this demon to turn your life into death rays and then let it go to the graveyard, it's a pretty good deal
The best cats and dogs in the deck are Kaheera, the Orphanguard, Feline Sovereign, Pack Leader, and Selfless Savior
But you can only have one Moonmist in your Commander deck, so to make this combination work, you're going to need your creatures to work well together when you don't have Moonmist in hand, and most of the Final Fantasy flip cards just don't gel all that well
It's a may, so it can come back from your graveyard with recursion if you have it
Ruby Ruby really doesnt need more overpowered cards, and its somewhat relieving that Shimmering Skies hasnt given them any