At 1st level, you gain proficiency at Intimidation. Beginning at 7th level, you take only the initial damage from spells and effects. You are immune to damage dealt on subsequent turns. You do not gain the Feral Instinct feature.
At 2nd level, you gain an extraordinary tolerance for some ailments and illnesses. You have advantage on Constitution saving throws, except when you are charmed, frightened, incapacitated, or unconscious. You do not gain the Danger Sense feature.
At 5th level, your proficiency bonus is doubled for Charisma (Intimidation) checks you make. You do not gain the Fast Movement feature.