1. bug on Inspiration skill gem 2.Inspiration skill gem should work with things like summon skeleton

[Vardos]

bug: so you can socket it into skeletal summons.. though tool tip says you cant, -- doesn't do anything to cost.
why not allow it to reduce the amount like it says it can...

Inspiration skill gem says skills reduced by 40% of cost. well spirit reservation is a cost.
1. 40% may be a bit much on multi summons.
2. why not fix it by adding a second text for reservations say 20% -- its only one set. should be easy to adjust should you need to.

[Drake]

1. Some support gems are not flagged correctly so you can slot them in gems where you shouldn't be able too, it will be likely fixed later.

2. No, if there should be a reservation reduction gem, it should be a separate gem. If you have only one gem, that means that you would only be able to slot it in either a buff or a skill because of the limit. Also it would be OP for cast on gems, since it would reduce the spirit and the mana cost of linked skills at the same time.

[Illumina]

Fun fact : Reservation is explicitly not considered a Cost in PoE.