[LE] Couple of questions about a custom magic effect

[morrowind1979]

I have set up a magic effect that adds a damage multiplier perk (perk to apply dropdown menu) to the player via a spell ability. I have set magnitude, duration, area etc to 0 in the spell box (not the magic effect box). My first question is will the spell still apply the perk even though I have set magnitude etc to 0?

 

My second question is: I there anyway to display a global variables value in the player UI. e.g. spell effect menu(as a magic effect), or as a misc stat etc.

 

The global i want to display is for the value of how many hearts the player has eaten in demon form. So I would need the value to dynamically update in the players UI as it increases.