Most builds use synergistic cards like Oath of Teferi, Peregrine Drake, and Felidar Guardian to create elaborate flickering board states that win in contrived ways
I consider Impulsivity a discard payoff as well, both because encore makes it an excellent card to discard and because recasting spells from your graveyard is a payoff for rummaging through your deck
8 Tivit, Seller Of Secrets Quite The Delimia A bit more expensive than other high-powered cEDH commanders, Tivit, Seller of Secrets comes loaded with some strong defensive measures to keep the Sphinx safe late in the game, while also setting up a strong game-closing combo just by entering the battlefield
Sculptor of Winter Sculptor of Winter is far from the greatest mana generator, but its a solid way to keep your mana flowing in a snow deck
So, in the lategame it's a 4/6 that draws two cards, and the synergies with Ephemerate are also excellent