Pokey, the Scallywagg

Coin flips and d20 rolls are the two randomizers Magic's silver-border and Un-set traditions have leaned on hardest, and each has its own ecosystem of payoff cards: coin-flip matters cards want you flipping, dice-matters cards want you rolling. This is the two-way adapter between them. Whatever your deck's randomness engine is built to reward, this creature lets you launder the other kind of random event into it, and it does so in both directions: a coin flip becomes a d20 roll for the cards that count rolls, a d20 roll becomes a coin flip for the cards that count flips, with the conversion tables spelled out so the odds stay honest (a flip is a clean 50/50 whichever way you read it). The clever part is that the replacement is optional and per-instance, so you are never locked into one mode; you pick the reading that turns each random event into the trigger your board actually wants. A 2/2 with menace is just enough of a body to carry the gimmick into combat rather than sitting home as a nonbon Rube Goldberg piece. It is a genuinely rare thing in Magic design: a card whose entire function is to make two previously incompatible subthemes talk to each other, a bridge creature for a corner of the game most cards ignore.