Toph, the Blind Bandit

The design hinges on reading a single +1/+1 counter twice: once as a body, once as a stat. Earthbend 2 animates a land as a hasty 0/0 and pins two counters onto it, while the static ability sweeps every counter across all your lands into her power. That coupling is the clever part, because it splits the two halves of her stat line completely. Her toughness is a fixed 3; her power is a live tally that grows with the board rather than the card, so proliferate, additional earthbending, or any counter-matters engine feeds her without ever recasting her. The elegant trap is that her offense lives on animated lands, which reads durable but is not immune: earthbend's return clause brings a destroyed land back tapped, but it returns as a fresh object stripped of every counter it held, so a sweeper or an edict aimed at the animated land still shrinks her. The lands survive; the counters do not. That is the honest cost of routing your attack through weaponized mana. Left alone she swings for whatever your battlefield has stockpiled, and the ceiling scales with how many lands you can afford to convert; pressured, she is only ever as big as the counters currently on the board, which makes protecting the animated permanents part of the puzzle rather than an afterthought.