help with spells

[Badozz]

how can i create an active spell which adds the hero +X HP for X mana for X seconds duration?
and how can i create a passive spell which gives spell damage reduction?
when i try to modify some item abilities then the spell doesnt work. Why?

 

[Andrewgosu]

Make the item ability hero ability. I suggest basing it off runed bracers, it gives magic reduction.

 

[Badozz]

it was already hero ability and based on runed bracers, but when i want to learn the skill it spends the skill point but i dont get the skill.. wtf?