Mental Strength (Priest Discipline talent) in WoW Forever: all 5 ranks

Every rank of Mental Strength

Rank	Effect	Source
1	Increases your total Intellect by 2%.	client
2	Increases your total Intellect by 4%.	client
3	Increases your total Intellect by 6%.	client
4	Increases your total Intellect by 8%.	client
5	Increases your total Intellect by 10%.	client

Tree: Discipline, row 2, column 3. Needs 5 points in Discipline first. The earliest you can finish all 5 ranks is level 19 if you put every point into this tree.
Competes with: Silent Resolve, Holy Precision, Martyrdom in the same row.

	Classic 1.12	WoW Forever
Name	Mental Strength	Mental Strength
Position	Discipline row 5, col 2	Discipline row 2, col 3
Ranks	5	5
Rank 1 text	Increases your maximum Mana by 2%.	Increases your total Intellect by 2%.

Shadow Priest leveling build (10–60) · 5/5
Discipline Priest healing build (31/20/0) · 5/5
Holy Priest raid healing build (20/31/0) · 5/5
Shadow Priest endgame PvE build (20/0/31) · 5/5
Discipline Priest PvP build (31/0/20) · 5/5

Questions players ask

Where is Mental Strength in the Priest talent tree?

Discipline tree, row 2, column 3. You need 5 points spent in Discipline before you can learn it.

Is Mental Strength new in WoW Forever?

Mental Strength existed in Classic (Discipline row 5, 5 ranks). In Forever it was changed: Classic read "Increases your maximum Mana by 2%.".