Three-mana ramp spells (more often than not) solve this perfectly, since they let you make mana of any color, or otherwise give you access to at least two additional types of mana
This isnt a problem for a set like CMM
Each potential commander cares about playing noncreature spells, and will give you some sort of benefit for doing so
Once the card has counters on it, you can choose to remove 1 and get either +2/+2 for whatever is holding Jitte , -1/-1 for a target creature, or recover 2 life
Syr Konrad, the Grim (WPN-005) - Wizards Play Network 2023 Foil Syr Konrad, the Grim (WPN-005) - Wizards Play Network 2023 Foil Wizards of the Coast NOT LEGAL Standard NOT LEGAL Future LEGAL Historic LEGAL Timeless LEGAL Gladiator LEGAL Pioneer LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage NOT LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Standardbrawl LEGAL Brawl NOT LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern NOT LEGAL Predh Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent
Ill give you three options