let me think more about this
In casual duels, it certainly can dominate quite ably, with the exiling of cards from the library being a more efficient method of milling, since they can't come back with reanimation or give someone threshold
Find ways to get extra chorus counters, like by proliferating, and youll be rewarded handsomely
But in EDH, you drop this and its solved
Its also noteworthy for being a commander focused on killing other commanders outright, rewarding you with being tempted by the Ring whenever an opponents commander dies
There are more than 70 changeling creature cards available to put in a Morophon, the Boundless Commander deck, none of them are super expensive and most are less than $3, so don't tell me you can't build that shark or whale deck