Bloodlust Rune

Not quite sure how the runes and their abilities work. What is the "Cooldown Group"?
Basically, I'm trying to create a rune/powerup that will cast bloodlust on the hero that touches it. There is only one unit in the area, so it doesn't matter if it is AoE.
Another idea I had was to create a unit, order it to cast bloodlust on the Hero, and then remove it. This seems a bit messy though.
Any ideas?

Well I have some runes that cast buffs on the heroes in my Hero Arena, I tried a lot of things and the only one that worked was:

Create an unit with 100 mana, 100 starting mana, the neutral hostile bloodlust ability, remove its shadow, and give it the Extra - Cinematic Arthas model , call it Caster


-Event
Generic Unit Adquires an item

-Conditions
(Item type of (item being manipulated)) equal to Bloodlust Rune

-Actions
Unit - create Caster at position of (triggering unit) facing default facing degrees
Unit - Add a Generic expiration timer to last created unit of 5 seconds
wait 0.01 seconds
Order (Last Created unit) to Shaman - bloodlust (Triggering unit)

Wow nice, i think im gonna use it on my map.

Frenzy is just self cast bloodlust, right? Just edit frenzy and put it on. It's the quillbeast ability if you don't know. I've tested it, it works fine.

Thanks everyone for your help. Frenzy works a treat. I'm still curious about the "Cooldown Group" though. What does it do?

In other news, I created a "Rune of Redemption" using triggers, that redeems everyone in a 512 radius. Rather simple, I know, but you have no idea how much fun redeeming large conglomerations of peasants is :D

I will reveal my map shortly. For now it remains shrouded in secrecy.

to add on a little to what vexorian said you should use a variable when you make the unit cast bloodlust. i know its not much but what if .09 seconds after you pick up the bloodlust rune than someone else does. than yours will not work because it will be over ridden by the other person's command. in fact i do this for all custom spells i make. even tho it does mean making the same spell 12 times in most cases it will be worth it when your map is bug free. but on the other hand you could always just use frenzy. lol ;)

That was the easy version of my trigger, In fact, I use local variables for it

Remember that Frenzy may save you today but, what's going to happen when you get the idea of an innerfire rune?