mtg final fantasy knights of the round Master Creatures Vol.2 : Toys & Games Put an indestructible counter on each of them.Indestructible Summon: Knights of Round [36]

Kiki-Jiki, Mirror Breaker Kiki-Jiki, Mirror Breaker may as well be the embodiment of combo itself, though it also happens to be a goblin too

P/T Number 398 Language Italiano Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) The card types in Magic include artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery

Unfortunately, her lack of the singer keyword makes her slightly less officiant, but it's still a powerful ability you'll want to keep triggering as often as possible

Additionally, it can be a powerful alternative wincon that does not bog down your deck

You can get a look at the new cards in the Streets of New Capenna Commander Card Image Gallery and read more about extended-art versions of Commander cards found in Collector Boosters

This flexibility is what makes it the number one choice here, though Tyvars Stand is a close second, and might be more relevant to you if youre predominantly running creatures or a deck focused on Commander Damage or Infect