Valley Mightcaller

The counter fires on the enter, not on death or damage, which means the growth is untethered from whether this creature ever swings or survives combat. The trigger doesn't care which of the four small tribes shows up: Frog, Rabbit, Raccoon, or Squirrel all read the same to it, so the card scales off your board rather than its own line. That matters because trample converts the accumulated counters into damage no chump can absorb the moment the body outgrows a blocker, and those four named types are exactly the creature types that flood the field cheaply and in numbers. The design plants the ceiling in the width of your deck, not in this creature's own text: a turn that dumps three cheap bodies stacks three counters on something that started as a 1/1, and none of it depends on the Mightcaller living through a swing to earn it. The catch is baked into the same trigger that powers it. It needs a critical mass of the right small creatures before the counters begin piling on, so it rises and falls with the go-wide shell around it. On an empty board it does exactly what its stat line promises and nothing more; three turns into a tribal curve it becomes the body the opponent has to answer first.