As it is, it's probably not good enough but maybe you just really want as many bounce effects as possible
Liberator, Urzas Battlethopter Liberator, Urza's Battlethopter is a point of power off from being a strictly better Shimmer Myr, one you can run as your commander no less
Now take those products you opened, and check, did you come across any of the most expensive commons or valuable basic lands
It can also be vulnerable to aggressive decks, since many of its strongest effects require paying life as a cost.
Spellseeker doesnt find everything, but it finds most of our interaction and some of our stronger X spells, like Silver Scrutiny and Exsanguinate
Or in Purphoros, Bronze-Blooded, a 5cmc commander full of expensive creatures, a 3cmc ramp card that taps for 2+ mana like Worn Powerstone is ideal because it lets you cast your commander two(!) turns early and start sneaking out your haymakers