Arcane Guarding

60% increased Energy Shield from Equipped Shield
+8% Chance to Block Spell Damage while holding a Shield [1]

Arcane Guarding is a notable passive skill that grants increased energy shield from a equipped shield. It also grants additional chance to block spell damage while holding a shield.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Clear Oil	Teal Oil	Black Oil	Arcane Guarding	60% increased Energy Shield from Equipped Shield +8% Chance to Block Spell Damage while holding a Shield

Version	Changes
3.16.0	(Undocumented): Now grants +8% Chance to Block Spell Damage while holding a Shield (up from 6%). No longer grants 20% increased Spell Damage if you've Blocked Recently. No longer grants 15% increased Spell Damage while holding a Shield.
3.6.0	Introduced to the game.