Kalemne otherwise sees lots of play in the 99 of other Commanders that care about Experience Counters like Kelsein, the Plague and Azlask, the Swelling Scourge
WUBRGCMLT order - White, Blue, Black, Red, Green, Colorless, Multicolor, Lands, Tokens 2
Sheoldred takes a basic resource and punishes your opponents for it
Removing three damage from a character is an enormous asset and can help keep the strongest cards in play, and drawing cards for each point healed sweetens the deal to an absurd degree
Miirym, a great Dragon Commander in its own right, lets you copy the dragons that enter the battlefield