It's not a wonderful card when looked at through that lens
But you're right only the cards you mentioned fit this deck
Lets go over using a companion in your commander deck in Magic the Gathering

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By broad tournament consensus, two OP-16 dual-color builds currently sit above the rest of the Yellow-adjacent field: Marshall.D
In comparison, Coat plays a bit better if you don't have as developed of a board when it comes into play, and it can continue to snowball higher as you progress with it