Suncleanser

Oracle Text
When Suncleanser enters the battlefield, choose one —
• Remove all counters from target creature. It can't have counters put on it for as long as Suncleanser remains on the battlefield.
• Target opponent loses all counters. That player can't get counters for as long as Suncleanser remains on the battlefield.
I guess that this hurts energy, experience counters, and very specific voltron decks? Anything that keeps counters from being accrued has the potential to be broken in the future, though... especially with a cheap cost and big butt.
Reread the card. It does not let you target yourself.
EDIT: As in you replace solemnity with this. Doesn't hate as well but is cheaper.