[Inaros] is stupid and boring and doesn't actually need any other stats besides 9k hp and 1.7k armor.
Initial Damage Reduction (armor) :
(984.375+900)/((984.375+900) + 300)
= 0.86
Incoming damage: 14%
Total Damage Reduction (adaptation):
0.90 * 0.14
= 0.126
99.87% Total Damage Reduction
Example:
100 damage -> armor (85% damage reduction) -> 15 damage -> adaptation (90% damage reduction of the incoming 15% damage)-> 1.5 actual damage to hp
Total Damage Reduction = 98.5%
Effective HP:
8635 / (1 - 0.987 )
= 664230 HP
Oh and every time you get shot you have a 9% chance to heal for 4,663 HP (Grace)