In a deck built around lifegain, those counters start piling up fast
If a creature can't block Treeshaker Chimera for any reason (such as being tapped), then it doesn't block
However, its a great alternative to the kind of strategy that Perdita, Devoted Mother offers, providing players with a way of getting a very powerful card out and getting any character cards theyve lost that theyd like to play again back into rotation.
Mana Clash was instead chosen to be the name used in the first solicitation of the game
For example, Jeleva, Nephalia's Scourge (one of my personal favorite commanders) interacts positively with commander tax by caring about how much mana youve spent to cast it
Bone Miser twists it even further, turning your discarded cards into a pile of resources