Maybe slap him with Voltron decks alongside commanders like Ardenn, Intrepid Archaeologist
P/T Set Number 139 Language Espaol Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) You can't use the reflexive triggered ability to try to attach an Equipment to a creature if that Equipment can't legally be attached to that creature
Calhoun - Marine Sergeant costs two ink to play and seems fairly standard at first with one lore, three attack, and two defense
Probably the best strategy is a Voltron approach, focusing on buffing and beefing up The Destined Warrior as your primary solo attacker
This type of play is why the reanimation/return from discard decks are going to see more testing
On their WeeklyMTG stream on Twitch, they showcased a bunch of new cards, as well as a great many treatments for those cards