@Maggio: Like the suggestions. I would suggest something like 10 mil gold to change the mode.
I guess the main thing I'd like to see is that the original ISS is the "true" mode of the ISS & the other builds that you can select from would be weaker versions of the other ISS out there.
ie, let's say you're a mage & have the recover magic ISS, but you want to change it.
1. You'd collect the entire set again
2. When extracting, you're given the options:
2a. Physical DPS: Weapon Block - For 60 seconds, AOE damage is reduced by 10% but your main hand weapon loses 1 durability. 180 second cd, when Weapon Block ends, Stamina is reduced by 3% for 30 seconds.
2b. Magic DPS ( greyed out if Recover Magic ISS already exists ): Lucky Shot - Firebolt ( 300 + 0.10 int fire dmg ) or Windbolt ( 300 + 0.10 int wind damage ). 20 second cd. After Lucky Shot is activated, Mental Exhaustion debuff is applied for 25 seconds. Intelligence & Wisdom are reduced by 1% during Mental Exhaustion. Can stack up to 10x.
2c. Healing: Forcefield - Reduces damage in a range of 50 for friendly units by 30% for 3 seconds. 300 second cd, when Forcefield ends, Stamina is reduced by 3% for 60 seconds.
2d. Tanking: Lion's Roar - Targets in an 80 range take 100 damage and make all affected targets target you. Aggro increases 3% for 3 seconds. 30 second cd. When used, a Concentration debuff is applied reducing movement speed by 10% for 60 seconds. Can be stacked up to 10x.
3. The ISS for recover magic is overwritten with one of the new ISS
So these would be the 4 level 55 alternate ISS that anyone could choose from. So if you had 3 level 55 ISS slots, then you could theoretically replace them all w/ 1 of the above builds. Other ones would need to be put together for 60+. The most important thing is to make them nice, but not nicer than the "real" ISS currently available.