To meet the WUBRG requirements, you will have to use the Heroes in a Half Shell card, or you can use Leonardo, the Balance , and pair it up with one of the other Commanders that features the Character Select ability, which is a variation of partner
Specifically in Commander, this card has some great link-up potential with cards like Willowdusk, Essence Seer, or Betor, Ancestor's Voice, which offer bonus actions based on the life lost (or gained) in a turn
Crashing Footfalls, Living End and Glimpse of Tomorrow are all stopped with a 0-mana Chalice of the Void other use cases for the card are for example disabling Lotus Bloom out of the Tameshi Bloom deck or preventing Affinity decks from playing their Ornithopter, Memnite, Welding Jar and co
You can run Keruga in a Simic deck or in any three, four or five-color deck that includes green and blue
Theres also two lore if you use her to quest
In both cases, surprise can elicit screams of terror from the audience, especially when your manifested card turns out to be a giant 15/15 wurm bearing down on them
