Argent Knight

Argent Knights can be summoned with an Argent War Horn for 30 seconds. When this time is up they will bubblehearth, which is not dispellable by any means. Your faction determines what race it is, humans for the Alliance and blood elves for the Horde. They also use the paladin mounts, again with the colors of their respective faction. As of patch Patch 3.2.0, blood elves spawn for both factions.

Attacks and abilities

 * INV Sword 39.png Basic Melee: 80-120 Physical Damage.
 * Ability ThunderBolt.png Holy Strike: 300-500 Damage.
 * Spell Holy HolySmite.png Crusader Strike: 70-160 Physical Damage, also applies a stacking debuff to the target that increases holy damage received.
 * Spell Holy SealOfProtection.png Seal of Protection: Grants then target 5 seconds of immunity to attacks
 * Spell Holy HolyBolt.png Holy Light (old): Heals for about 1000, can crit for 200% normal healing
 * Spell Holy DivineIntervention.png Divine Shield: N/A
 * INV Misc Rune 01.png Hearthstone: N/A

Trivia

 * Alliance knights wield Grand Marshal's Claymore, while Horde paladins knights Ashkandi, Greatsword of the Brotherhood.
 * The human female knight has the same appearance and weapon as both the Argent Champion summoned and fought during the quest The Valiant's Challenge, and Temura Ence, an Alliance garrison follower. It is possible that she is intended to be the same person.

Gallery
Argent Knights using the Hearthstone to return to Light's Hope Chapel.