!Ammo or CharAttSet Script Mod Assistance Needed

So I have a token drop down menu setup which calls on all the spells from the character's spell list for Demon Gate characters. I would like for the spell drain of each spell to be automatically taken from the Mana Pool of the character when they roll to cast. Any ideas of how it may work? !ammo @{selected|token_id} @{ManaAdj} -@{Spell1Drain} The actual token macro looks like this but I'd like to use the script and input it in here for each of the 6 spells of the caster's primary attack magic. /em Casts a Spell &{template:default} {{name=@{name} Cast Result}} {{Total to Cast = ?{Spell List|@{Spell1Name},[[d20+@{selected|Spell1HitMod}+?{Modifier|0} [@{Spell1Name}_Cast] ]] **@{Spell1Name}**|@{Spell2Name},[[d20+@{selected|Spell2HitMod}+?{Modifier|0} [@{Spell2Name}_Cast] ]] **@{Spell2Name}**|@{Spell3Name},[[d20+@{selected|Spell3HitMod}+?{Modifier|0} [@{Spell3Name}_Cast] ]] **@{Spell3Name}**|@{Spell4Name},[[d20+@{selected|Spell4HitMod}+?{Modifier|0} [@{Spell4Name}_Cast] ]] **@{Spell4Name}**|@{Spell5Name},[[d20+@{selected|Spell5HitMod}+?{Modifier|0} [@{Spell5Name}_Cast] ]] **@{Spell5Name}**|@{Spell6Name},[[d20+@{selected|Spell6HitMod}+?{Modifier|0} [@{Spell6Name}_Cast] ]] **@{Spell6Name}** }  ?{Spell Task|    1 Magic Action, **Magic Action: 1**|2 Magic Actions, **Magic Actions: 2**|3 Magic Actions, **Magic Actions: 3**|4 Magic Actions, **Magic Actions: 4**|5 Magic Actions, **Magic Actions: 5**|6 Magic Actions, **Magic Actions: 6** }  }}

If you want that ammo macro to perform a calculation, it would be something like this: !ammo @{selected|token_id} [[@{selected|ManaAdj} -@{selected|Spell1Drain}]]

Thanks @GiGs for some reason getting a result like this and it is not taking the mana drain from the token. It is showing the remaining mana pool (33) there Total to Cast 16  !ammo -MHmg1PgxN5Dy0qFi3zc  33   Aether Bolt Magic Action: 1

I looked at the ammo syntax and realised I'd misunderstood your original command !ammo <character_id> <attribute name> <amount> [resource name] So it should be !ammo @{selected|token_id} @{selected|ManaAdj} -@{selected|Spell1Drain} Give that a try.