Return of Reckoning

i use SM and i have take a point for use aethyric armor and can't have it in combat
i recast it 4 or 5 time at combat because the enemy player leave de buff
i think is for addon nerfed button if the name is this
ok leave the buff but i think after i have lose it i can have an immunity for 10 sec if i recast aethyric armor
in this 10 sec the enemy can't leave me a buff
have no sense a player recast a buff too much time
is possibile have an immunity?
thanks bye

As long as armor pots exist, this ability is useless (as other armor buffs too).
I recommend to use the mastery point for something else and craft/buy armor pots, which can't be removed by the enemy and don't cost a precious mastery point.

i just use 2 potion for Others char stat
and aethyric armor give me 5% disrupt also

Aethyric armor is relatively useless at the moment. Any tank worth their salt will shatter any enchantments on you first thing, so it's not worth the mastery point. Additionally, the armor it provides is subpar compared to a pot and the disrupt is easily covered by rr points.

The disrupt is worthwhile if you're RvRing in a RDPS comp =D