pharoah from yugioh god cards Yu-Gi-Oh! Trading Cards: 2022 Tin of The Pharaoh's Gods, Multi-Color : Toys & Games Character Deck- Pharaoh Atem Ceremonial

This attack does 30 damage for each Energy card in your opponents discard pile

Alternatively, other builds uses various "Horus" monsters, which can easily swarm the field by filling the Graveyard and bring themselves out by their own effects when any monsters (including "Danger!" monsters through their own discard effect) were sent to the GY

This one has a tiny bit less value than Xanathar (though foil Fire Coveneant is very nice)

Control - slow down the opponent while you spin up powerful cards

Check out Geomancer's Gambit for a slightly more expensive version

Remember that your commander will make you a ton of troops, so keep some back in hand so you're not out of the game to one spell