Commands

Everything SirrMizan can do. Every command works both with the prefix (! by default) and as a /slash command.

Rolling

/roll [expression] [target] [hidden]!roll · !r
Roll DiceRoll dice with an expression like 2d6+3. You can append a target name. The slash form can keep the result to you alone with hidden.With no expression it rolls the server's default roll; !r +5 adds to it, !r Goblin names it and !r adv rolls it with advantage. A full example: !r 1d20+5 adv Goblin.
/probability [expression] [threshold]!prob · !probability
Chances of a RollEstimate a roll before you make it: the average, the range and the distribution. Add a comparison for your chance of landing there: >= 15 for that number or more, <= 5 for it or under, = 20 for exactly it. Nothing is rolled and nothing is saved.It reads the same expressions as a roll, aliases and adv included. The comparison takes >=, <=, >, < and = (or ≥ and ≤), and the slash command's threshold option also takes a bare number. A repeat like 6# is set aside: every roll has the same chances.

The whole dice notation, from keep and drop to adv, is on one page: Syntax

/alias [name] [expression]!alias [name] [expr]
Roll AliasesSave a roll under a name, then roll it with !r name. On its own it lists yours; with a name alone it shows that one. Reusing a name updates it.An alias is part of the roll: !r perception+2, !r 2#perception, !r perception adv. Up to 25 aliases, with names of up to 24 characters. A name that reads as dice, like d20, is refused, and only a roll that works can be saved.
/unalias <name>!unalias <name>
Delete an AliasRemove one of your aliases. The answer shows what it held, so you can put it back.
/setcolor <color>!setcolor <color>
Set ColorChoose your preferred embed color.
/getcolor!getcolor
Get ColorShow your current preferred color.
/setrollshort <on|off>!setrollshort [on|off]
Compact RollsToggle short single-line roll output for yourself.
/forgetme!forgetme
Forget MeDelete the data the bot stores about you: your embed color, your compact-output setting and your roll aliases.

These six belong to you rather than to a server, so they can follow you anywhere: add SirrDice to your account

/defaultroll <expression>!defaultRoll <expr>
Set Default RollSet a server-wide default dice expression.It is rolled whenever a roll leaves the dice out: !r alone, !r +5 (added to it), !r Goblin (under that name), !r adv (with advantage). Dice only: it takes no target name.
/setlang <lang>!setlang <en|fr|de|es>
Change LanguageSet the bot's language for this server. Available: en, fr, de, es.
/setprefix <prefix>!setprefix <prefix>
Set PrefixSet a custom command prefix for this server.
/settings!settings
Show SettingsShow this server's language, prefix and default roll at a glance. Reading them needs no permission; changing them does.

Admin commands need the Manage Server permission. The prefix shown is the default, each server can change it with /setprefix.