Shield Wall is easily the most powerful Defensive cooldown in a Warrior’s arsenal. There are 2 ways to buff it:
3 minute mini-wall vs 5 minute big-wall. Hmm… meh.
…not really.
A 3 minute, 40% Shield Wall isn’t really that amazing for a highly praised Major Glyph slot. A 4 minute, 60% Shield Wall isn’t really worth 2 talent points, at all.
Before: 5 minute cooldown, 60% reduction
After: 2 minute cooldown, 40% reduction
After sounds really, really good.
Glyph of Shield Wall is really bad without 2 points in Improved Disciplines. Improved Disciplines is a waste of talent points without the Glyph of Shield Wall. The whole is greater than the sum of it’s parts applies here. So, if you’re sporting one without the other either respec or take a trip to the Auction House and rectify the situation.
Ultimate Guide Guarantee: "...within seconds of accepting a quest you will
know WHERE to go, HOW to complete it, and WHEN to do it." Click Here For Proof!
Absolutely not. It only means that when you’re going to do it that you should go the whole way or not at all. There are still plenty of acceptable specs without Improved Disciplines that utilize other Major Glyphs instead of Glyph of Shield Wall.
Read the rest here: Buffing Shield Wall: The Whole > The Parts