Hakeijo, the tri-stat glyph is the most useful. Tanks need all three pools.
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Casual you can just do Stamina on your big 4: Helm, Shield, Leggings, and Chest; Health on everything else up to around 30k, anymore than that is up to you. Otherwise yeah, the triple stat buff is amazing if you plan to do vet dungeons and trials, but its expensive if you don't have master enchanting around 40k each glyph.
I have max health on most of my pieces, so I don't have to put some many attribute points into health.
You don't have to have Hakeijo to tank. Only thing I haven't tanked is vMoL, and I don't have any. Not saying I wouldn't LIKE to have them, but don't feel like it's the baseline.
Don't craft tri-stat gear until after we see how the changes to heavy armor coming in DB affect our builds.