X cannot cause a Protected Avatar to lose or gain life, and cannot affect the healing that a Protected unit receives.
For example, if a unit is Protected from Sites, Gnome Hollows will not prevent it from entering, a Remote Desert will not damage it, and River Rapids cannot move it. If a unit is protected from Magic, they cannot be targeted by Zap!, will not take damage from Minor Explosion, and cannot be banished by Day of Judgement.
As further examples for “Protected from Sites” (e.g. ), note that these site abilities will continue to work:
Wizard's Den will still allow a Key bearer Avatar to draw a spell (since players actually draw spells, not units).
Garden of Eden will still stop a Key bearer Avatar from drawing extra spells (since players actually draw spells, not units).
Beacon will still count an enemy Key bearer.
Asmodeus with the Key still can't destroy a Bedrock.
A Key bearer Avatar will still have to pay 2 extra for Bureau of Occult Control, since gaining and paying mana is done by the player.
A Key bearer Avatar will still be able to use the threshold provided by The Empyrean's site ability, since tracking threshold is done by the player.
site would still banish a non-voidwalkminion Key bearer, since the game itself is banishing the minion.