rolls showing a certain result

what im wanting to do is roll 1d20+something and have the result show certain effects that can happen depending on the roll. example dc 15 you push target back dc 20 you push a target back and make an attack etc. so if i rolled a 1d20+2 and got 15+ it shows only the dc 15 effect if i rolled 1d20+2 and got the 20+ effect it shows the effects of dc 20 or dc 15 and 20 (either would work) does a marco like this exist 

You want  Rollable Tables . Unfortunately, they don't really have support for modifiers on the roll, so you would be forced to use the API (a Pro feature) or create a new table for every possible modifier you want to use.

Another strategy (also using Rollable Tables) exists, and is outlined here and here . Essentially, Create a Rollable Table with one Table Item corresponding to each 'certain effect'. Each of these Rollable Tables should have the same name but varies only by a corresponding number. e.g. "Effect-0", "Effect-1", "Effect-2", etc. Devise a mathematical function that inputs [[1d20+?{Mod}]] and outputs the number corresponding to the appropriate Rollable Table. Nest this function within the roll expression for that table. e.g. /r 1t[Effect-[[ {{floor((1d20 + ?{Mod|2} - 10) / 5), 0d0}kh1, 2 + 0d0}kl1 ]]]] (The above contains an extra closing bracket, which is required for this to work.)

One slightly different approach is to create 1 table for each possible roll and use a formula like this: [[ 1t[Effect [[1d20+@{modifier}]] ] ]] So, you might have tables named: Effect15, Effect16, Effect17, Effect18, Effect19 Each would have a single entry with a value of: You push target back That would give you the scaling you want with a little less work. (As usual, Silvyre says it better!)

I messed with this a little bit and it seems to work.  I used this formula to round the roll to one of five effects.  This way you only need to have 5 tables to cover DC0, DC5, DC10, DC15, DC20.  You would label your tables as Effect0 thru Effect4.  No need to make a table for each possible dice roll. /r 1t[Effect[[floor((1d20+2)/5)]]]] It can further be automated to use a variable for the modifier instead of a fixed number (1d20+@{selected|modifier}) or use the query ?{modifer|1} /r 1t[Effect[[floor((1d20+?{modifier|1})/5)]]]]