Spinal Parasite

The joke is in the printed body: a -1/-1 creature whose entire viability rests on outpacing its own death. Sunburst on a stat line that starts underwater means casting it for fewer than two colors leaves you with a creature that never resolves into anything, and even a full five-color spend nets only a 4/4 that has to spend two of its counters to do anything useful. The ability itself is the genuinely odd part: it lets the creature shed +1/+1 counters to strip a counter from any permanent, which in an artifact-counter environment reads as a removal valve for charge counters, fade counters, age counters, and the like. That makes the card a counter-economy piece dressed as a creature: every point of removal it provides costs it two points of body, and the body was paid for in colored mana up front. It is a design built to reward going wide on colors while punishing the obvious all-one-color cast, and the negative base power is the constraint doing that work. As a curiosity it captures a particular early-multicolor-era impulse: tie a creature's stats directly to the rainbow of mana you can muster, then hang a utility ability off the result. The execution is awkward by modern standards, but the underlying gear (mana diversity translated into a depletable removal resource) is a cleaner idea than the -1/-1 starting line makes it look.