Invulnerability

You gain a +2 bonus to AC. You are immune to poison and disease.

Bullet Proof
Whenever you would take damage, reduce that damage by your character level after calculating the total.

Immovable
Whenever you make an ability check or saving throw against being grappled, moved against your will, knocked prone, Restrained or Stunned, you may gain a bonus to the ability check or saving throw equal to your level.