Hello, the Invulnerable Rager (IR) archetype says it gains DR/equal his level at level 2, but doesn't mention if that DR it's limited at level 2 or upgrades with every level. Any idea, anybody?
It continues to upgrade every level.
At 2nd level, the invulnerable rager gains DR/— equal to half her barbarian level.
I see no room for misinterpretations.
As your level goes up, so does your DR. But its every other level, not every level.
Aparantlly, the DR seems to incrase as you level up. If not, most likelly it would be written "the invulnerable rager gains DR 2/-.
So at level 20 is DR 10/-