I have a coin flip deck -- now it's time for a dice rolling deck. There are about 25~ legal dice roll cards from the DND set, and I'm running the dungeon
Mana Clash rulings - MTG Assist
The 30 Best Coin Flipping Cards in Magic - Draftsim
Frenetic Efreet x1 - HP - Magic the Gathering MTG Reserve List for coin-flip EDH | eBay