Making a hero xp book increase spell dmg of the triggering hero..

Is this possible? I'm making my own hero-based map, like dota or TOB. Late game int heroes are so useless IMO. Everyone gets all these +dmg items, and ints are stuck with their craptacular 300 dmg nukes. in my map when an int hero reaches maximum level, i'll allow them to purchase something like a spell dmg book. It'll be a charge like those tomes +2 agi, +2str etc, so it doesnt take up space. Is it possible to trigger something like this?

you can use Engineering Upgrade

Engineering upgrade eh? can you explain how this is done?

its basicly an ability from the tinker, that will make your current abilities turn into new abilities, and from that, every item thingie can level up your new "Engineering Upgraded ability"

Oh, right. That ability. How would I go about putting that on an item for use :S

hmm, an item eh? well forget engineering upgrade then hah, i would use triggering

like, when a unit picks up that item, remove some spells on the unit(the ones that get upgraded) then give the unit a new ability with more levels and each time the unit grabs the item again level up the new ability.

Originally Posted by Optional

Oh, right. That ability. How would I go about putting that on an item for use :S

Just spell damage needs to be increased? Then it's easy.

Add the hero a passive ability (SpellDmgIncr), make him a spellbook that contains that ability(DummyPassiveBook) and then disable that spellbook (He'll have the ability, but you can't see it anywhere.) Then create a trigger:

Unit begins the effect of an ability.

If ability being cast is That or That or That or That or.. You get the point, any nuke really.

Wait for event (Spell effect takes place or so, don't remember right this one) and Unit - Casting unit damage Target unit of ability being cast for 100 * Level of SpellDmgIncr for casting unit.

Ta-da, it just dealt extra damage.