Some things that may draw you into specific colors are: A really strong rare you're excited about Plenty of "removal" cards that can deal with your opponent's creatures A lot of playable cards in that color A good "mana curve" in that colormeaning lots of creatures of different costs Ideally, the colors you pick will have all four of these criteria, but if two or three of those are true, that's plenty good
However, the select few Psychic Type decks that are viable are among the best - being solid at worst and excellent within the meta at best
Karn, our AI deck building assistant, applies these ratios automatically - it can build a full Commander list from scratch or analyze a list you paste, drawing on Scryfall's 40,000+ real cards and thousands of Commander decks
Hey - this is my list and if you don't like it you can
Creatures that draw you cards like [c]Spirited Companion[/c] and [c]Organ Hoarder[/c] are also excellent resources