Wrong resist rate on lvl 50 spell

[Tritri]

Hello,

Edit : Sorcerer lvl 50, Spell is Essence devourer, the lvl 50 drain life in Body Magic

I'm pretty sure a lvl 50 spell is supposed to have 10% resist rate against other level 50 players (and lvl 50 mobs for that matter)

So I was a bit surprised when the resist rate shown for my lvl 50 sorcerer life drain showed 12,5% resist rate on an enemy player.
I tested it on the dummy and the result is the same.

I tested it my lvl 50 mezz, and the resist rate is 10%

Also I got MoF IV so it makes even less sense

[Karen]

Dual spells (lifetap, dd+debuff, dd+snare, etc...) have an additional 2,5% resist rate. This is working as intended.