We have thousands of cards with population reports already and we are adding more every day
Green is your most obvious and flexible third color, though, with the cross-synergy of GW Food effects hard to ignore (and some decent food generation in black to boot)
Ebonlake Grotto Create two 1/1 blue Faerie Dragon creature tokens with flying
This Booster Pack contains cards like Dragonite VSTAR or Mewtwo VSTAR (Regular and Secret Version), Rainbow Cards, and of course, the Radiant Venusaur, Blastoise, and Charizard cards , as well as the infamous PokeStop Stadium and Snorlax cards that are often used for the Stallax strategy
This means that if the creature doesn't enter the battlefield with oil counters on it, there isn't an opportunity to put oil counters on it after it has already entered to get Ichorplate Golem's first ability to trigger