Theres a light token theme, which fits naturally with convoke, as well as some Twiddle shenanigans meant to play into the tapping and untapping nature of the deck
Its special ability is to reanimate a creature that was milled in a given turn, but there are some considerations: First, the creature will always be a 3/3 green mutant, so its better to get creatures with good abilities than large beatsticks
Except, it has Islandcycling, meaning that instead of putting it just outside the 99, I can just cut a land instead and keep it in
#8 Staff of Eden, Vaults Key Staff of Eden, Vaults Key is deceptively powerful at least, in Commander
At 6 mana its a bit slow, but you can pair it with blink effects like Splash Portal to make it a powerful engine that can keep refueling your hand with removal and interaction