New system

[politopolito]

Renegade studios added a new system, Essence 20, its very close to the normal D20 system used in DnD, but the change how the ability checks work. Every time, you roll your D20 (normal, advantage or disadvantage as DnD) but you roll a second dice (or more dice) to add, this its ok, but, if you roll a Specialization (kind of sub-skill) you roll your D20, your ability dice(s) and all lower dices and only add the highst and crit if the D20 or any dice bigger than D2 its at maximum. For example:
Athletics at D8 -> !roll 1D20 + 1D8
If i have a specialization swiming -> !roll 1D20 (R: 15) -> !roll 1D8 (R: 6) -> !roll 1D6 (R:3) -> !roll 1D4 (R:4) -> !roll 1D2 (R:2)
The gameplay result its 21 and possible Critical success, because only add the maximum numerical (6) and one have the maximum in the skill dice (The D4), this dice may be different, dice but the D2 cant crit.
My idea its a Alias roll like "essYDX" to only roll the ability using this scale: 3D6 -> 2D8 -> D12 -> D10 -> D8 -> D6 -> D4 ->D2. And show crit if the roll its the maximum, (3D6 only crit at 18 and 2D8 at 16).

Many thanks for your time.