Sentinel
Call upon the Light and gain 15 stacks of Divine Resolve, increasing your maximum health by 1% and reducing your damage taken by 2% per stack for 20 sec. After, you will begin to lose 1 stack per second, but each 3 Holy Power spent will delay the loss of your next stack by 1 sec. While active, your damage and healing are increased by 10%, and critical strike chance is increased by 10%.
Tree position
In the Protection Paladin talent tree, Sentinel sits in the Protection specialization talents, row 13 of 15. It is a single-point node. Its row opens once 20 points are spent in Protection Talents.
Connected above
The tree draws a line into Sentinel from Guardian of Ancient Kings, Empyrean Authority and Gift of the Golden Val'kyr.
Guardian of Ancient KingsEmpowers you with the spirit of ancient kings, reducing all damage you take by 50% for 8 sec.
Empyrean AuthorityGuardian of Ancient Kings has 1 additional charges.
Gift of the Golden Val'kyrEach enemy hit by Avenger's Shield reduces the remaining cooldown on Guardian of Ancient Kings by 1.1 sec. When you drop below 30% health, you become infused with Guardian of Ancient Kings for 4 sec. This cannot occur again for 45 sec.
Connected below
Sentinel leads on to Bulwark of Righteous Fury and Final Stand.

Final StandDuring Divine Shield, all targets within 15 yds are taunted.
Same row
Also on this row: Ferren Marcus's Fervor and Zealot's Paragon.

Zealot's Paragon2 ranks
Talent trees
Sentinel is in the talent tree of 3 specializations. Paladin: Holy (Healer), Protection (Tank), Retribution (DPS).
Sentinel Changes by patch
Tracked changes to this talent between game data builds, newest first.
- First tracked in the game data (patch 12.1.0)
- Spell changed from 1246481 to 389539 (patch 12.1.0)