I think adding ward 2 to expensive Commanders is the way forward in a format that encourages running a low curve, especially when your deck revolves around them
Creature - Human Soldier Color tag templates(None) Merry, Warden of Isengard Partner with Pippin, Warden of Isengard (When this creature enters, target player may put Pippin into their hand from their library, then shuffle.) Whenever one or more artifacts you control enter, create a 1/1 white Soldier creature token with lifelink
Players will set up monster cards to remove the opposing player's life points (LP)
"Number C125: Neptune, Ocean of Divinity" Aqua/XYZ/WATER ATK: 3000 DEF: 2500 RANK: 8 (********) Effect: 2 Level 8 WATER monsters You can also Xyz summon this card by using a "Number 125: Neptune, Ocean of Calamity" as the Xyz material
Creature - Human Shaman Unyielding Gatekeeper Disguise (You may cast this card face down for as a 2/2 creature with ward
A second strategy is based around the Graveyard, so Im guessing maybe Zombies