Unholy frenzy automatik to units orund

I begin starting do triger spells, not realy good but me bigest question is:
how can i make a triger that wen a unit cast Roar (ore some cusdom ability) that every unit that gets the roar efekt gets Uholy Frenzy, and i dont want to use Jass.:////

Isn't there an "Attack Speed Increase" field in roar?

I did not understand a word of that. Also its much easier to use jass. Its all cut n paste.

i want make:
wenn my hero casts Roar normaly all units orund gets the Roar efekt.
the units witch getting aditional damage from roar also get Uholy Frenzy!
and i dont know how to triger that!

Can't u just make unholy frenzy have 0 casting range and an area effect so it casts in on an area of units surrounding the caster