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Shout

From Diablo 2 Wiki

Shout

Shout.jpg

Required Level: 6

Prerequisites: Howl
Details:

Frenzy barbarian casts shout

"Alert your party of impending danger, raising your and their defense ratings". This war cry provides an Aura-like defense bonus to any friendly character or minion in range. The bonus is to a character's total Defense, so if you had 1200 Defense and Slvl 14 Shout adding 230%, you'd go to 2760 Defense.

This works well with Iron Skin, and has 70% more defense per Slvl. However Iron Skin is passive and works all the time, so whether you should max that, or this, or which first depends on how good you are at remembering to always keep this Warcry active. If you can remember, then Shout provides a bigger bonus, and with points in it this lasts quite a while.
Synergies:

Mana Cost:6
Skill Level Progression [e]
SlvlDefense +X%

Duration (seconds)

SlvlDefense +X%

Duration (seconds)

SlvlDefense +X%

Duration (seconds)

SlvlDefense +X%

Duration (seconds)

1100%206150%7011200%12016250%170
2110%307160%8012210%13017260%180
3120%408170%9013220%14018270%190
4130%509180%10014230%15019280%200
5140%6010190%11015240%16020290%210