Dice steps
Promote or downgrade a numeric die before rolling.
Side ladder
step(+N) promotes N steps and step(-N) downgrades. The ladder is d2 → d4 → d6 → d8 → d10 → d12 → d20 → d100. An intermediate value takes the next strictly higher or lower step: d5step(+1) becomes d6; d5step(-1) becomes d4. The change happens before side validation, cost analysis, and rolling.
1d5step(+1)
1d5step(+2)
1d5step(-1)
Aliases and composition
+step(N) and -step(N) are aliases. Repeated steps add up before transformation; opposite signs can cancel. A terminal suffix can target an expression containing exactly one die, such as 1d5+2+step(1). With several dice, put it next to its target.
1d5+step(1)
1d5step(+2)step(-1)
N must be a nonzero safe integer. Moving past either end of the ladder raises UNSUPPORTED_NOTATION. A nonzero balance on d% or dF is also rejected; a zero balance may accompany them without changing sides.