mtg cards like moonmist Ultimecia, Time Sorceress // Ultimecia, Omnipotent | mtg cards like moonmist So

One dream scenario is that at least one other player has Plant tokens that go with our Avenger of Zendikar

Grist, the Hunger Tide is a three-mana Black and Green planeswalker that can do a bit of self-mill and make Insect tokens, sacrifice creatures to destroy creatures or planeswalkers, or drain the life from your enemies based on the number of creatures in your graveyard

Tayam, Luminous Enigma Tayam, Luminous Enigma offers a compelling reward for filling your graveyard: The ability to return permanents to play

4 Rise of the Floodborn booster packs of 12 additional game cards each

Given that Sai has a sacrifice ability, I wouldnt be terribly surprised to see artifacts like Cryogen Relic and Mycosynth Lattice with death triggers, either