>>812015nah, see how it works is
first, you put an exclamation mark
and then you put a number which represents the number of dice you wanna roll
and then you put 'd' followed by another number
and that second number represents the number of faces on the dice
so !XdY can be read like "(x) number of (d)ice that have (y) number of sides"
an example would be
1d10 = 9which should give a single ten sided die, which is what you should use for OP's image btw
because there are actually ten options including the zero
and yeah that's basically how it goes :3