I'm not as tuned in to those cards, and the mechanics of them can get weird, so I'm avoiding them on this list
Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)
Irida Water acceleration for a water-heavy format Astral Radiance includes a lot of great new Supporter cards, but Irida makes a case for being one of the best
add 1 Sacred Beast monster from your Deck to your hand, except Raviel, Lord of Phantasms Sacred Beast of Endless Eternity, then discard 1 card
Being able to target players for the damage with their draws is also a win con depending on what you're against
Instructions on how the competitors can connect to the in-game Tournament Room will be provided once you are seated for the events