From WoWWiki

Fel Armor
Fel Armor Instant cast n/a range Varies Surrounds the caster with fel energy, increasing the amount of health generated through spells and effects by 20% and increasing spell damage by up to X. Only one type of Armor spell can be active on the Warlock at any time. Lasts 30 min.
Usable By
Class	Warlock
Race	All
Properties
Type	Defensive
School	Shadow
Cooldown	n/a
Talents
Talented	No
Talent Tree	n/a
Talent Required	n/a
Improvement Talents	Demonic Aegis
Other Information
Ranks	2
Requirements	n/a

Fel Armor is a Shadow based spell that increases the warlock's healing effects and spell damage.

Rank	Mana Cost	Spell Damage	Level	Cost
1	637	up to +50	62	3 6
2	725	up to +100	69	6 30

Notes

• Only one type of Armor spell can be active on the Warlock at any time.
• The 20% bonus to healing applies to all sources, not just the warlock's. This includes bandages, other player's heals, healthstones, health potions, Cannibalize, etc.

Classes • Warlock • Warlock Abilities • Warlock Talents • Warlock Tactics