Hexproof

Hexproof is a static ability. A permanent with Hexproof can't be targeted by spells or abilities your opponent controls.

Comprehensive Rules
702.11. Hexproof

702.11a Hexproof is a static ability.

702.11b “Hexproof” on a permanent means “This permanent can’t be the target of spells or abilities your opponents control.”

702.11c “Hexproof” on a player means “You can’t be the target of spells or abilities your opponents control.”

702.11d Multiple instances of hexproof on the same permanent or player are redundant.