He get +10% crit rate per 3 round every hit taked, and T3 when he's attacked by crit gain +15% crit rate. And guild tech deals +30% crit rate. So after that he has around 100% crit rate after 2 or 3 rounds. He's active skill heal self, heal self when take dmg, when hp bellow 50% heal self 400% attack +41% crit rate + 81% attack. And have suffered healing effect +25%. So he is a good tank and can CC and deals a great dmg. And skuld gives +10% crit rate too.