Aid Spell, Damage, and Fatigue

[hcobb]

Originally Posted by phiwum

As Henry says, spells like Create Gate need 50 ST. Figure a pretty darned good wizard has 20 ST available. If each apprentice can boost him only by 5 ST, then he needs a minimum of six apprentices -- more, since some are bound to fail to cast twice in a row.

Can you point out that limitation? I see that the Rule of Five speaks of a limit due to magic items, but I don't know where the rules would suggest a limitation to the Aid spell. Thanks.

Index: Attribute enhancer items, 161.
ITL 162: "Other effects – like potions and Aid spells – are cumulative with magic items, but only to the limit of 5. You could have a DX +3 ring, and have a +3 Aid spell cast on you – and both would help, but increasing your DX only to +5."

Note that the ring is a pre-existing condition that limits the effect of the Aid spell.