The Capitoline Triad has zero colors in its color identity , which means War Room costs no life to activate, and Commander's Plate gives protection from all colors

Theme Booster Number of Cards: 35 cards and 1 reference card Number of Versions: Varies (Throne of Eldraine has 5, one of each color) Contents: 1.1 rares/mythic rares (Nine out of ten Theme Boosters will have one rare, but one out of ten will have two rares.) 3334 commons/uncommons 1 reference card Collector Booster Number of Cards: 15 cards and 1 foil token card Number of Versions: 1 Contents: 1 rare/mythic rare with extended art 1 foil rare/mythic rare 9 foil commons/uncommons 3 special-frame cards (showcase or borderless planeswalkers) 1 ancillary card 1 foil token Planeswalker Decks Number of Cards: 60 cards Number of Versions: 2 Contents: A playable deck with the following mechanically unique content 1 copy of a mythic rare (the planeswalker the deck is built around) 2 copies of the same rare (a card with an effect that also tutors specifically for the planeswalker card in this product) 3 copies of the same uncommon (usually a card synergistic with the planeswalker in the deck) 4 copies of a the same common (a basic effect to make the deck work) Brawl Decks Number of Cards: 60 cards Number of Versions: 4 Contents: 60-card deck 7 new, mechanically unique cards per deck Life wheel Bundle 10 Draft Booster packs 20 foil basic lands 20 regular basic lands 1 bundle promo card 1 oversized spindown Storage box Promo Packs Number of Cards: 4 Contents: 1 foil-stamped rare/mythic rare from the set 1 foil-stamped curated rare/mythic rare (from selected group of 121 cards, from older sets) 1 FNM promo treated card (frame treatment currently used in FNM, 5 cards) 1 MTG Arena promo card (grants a booster pack

None of the green ones made this list because Commander decks that run green tend to not need Talismans (green provides the necessary mana fixing)
While all of them are a blast to pilot, the first two are the easiest due to Clouds versatile equipment playstyle and Yshtolas fun card draw/damage engine
This card also has a fantastic activated ability outside of trying to poison your opponent to death
I don't expect to see these in 60-card constructed decks, but in Commander I can definitely see them having a profound impact