Here is an example of a Power Card with Alterbars that errors if the token has a - or _ in it. !power {{ --titlefontshadow|none --tokenid|@{selected|token_id} --format|atwill --corners|10 --name|Darius --leftsub|Melee Attack --rightsub|Greataxe --Range| 5' --Attack|[[ [$Atk] ?{Advantage?| Normal, 1d20 + [[@{selected|strength_mod}]] [STR] + [[@{selected|pb}]] [PROF]] | Advantage, 2d20KH1 + [[@{selected|strength_mod}]] [STR] + [[@{selected|pb}]] [PROF]] | Disadvantage, 2d20KL1 + [[@{selected|strength_mod}]] [STR] + [[@{selected|pb}]] [PROF]]} ]] vs **AC** [[@{target||npc_ac}]] --?? $Atk < @{target||npc_ac} ?? !Missed|**You missed!** --?? $Atk >= @{target||npc_ac} AND $Atk.base <> 20 ?? Hit:|[[ [$Dmg] 1d12 + [[@{selected|strength_mod}]] ]] strength damage --?? $Atk >= @{target||npc_ac} AND $Atk.base <> 20 ?? alterbar1|_target|@{target||token_id} _bar|3 _amount|-[^Dmg]/2 _show|all --?? $Atk.base == 20 ?? Critical Hit:|[[ [$CritDmg] 2d12+[[@{selected|dexterity_mod}]] ]] piercing damage --?? $Atk.base == 20 ?? alterbar2|_target|@{target||token_id} _bar|3 _amount|-[^CritDmg]/2 _show|all --?? $Atk.base == 1 ?? !|**Fumble:** }}