Anyone know if blocking mitigation has been increased from 20%?

[Kyni]

The Blackest Night has pretty crazy scaling. It gains increased EHP based on gear and health, while other skills effectively lose it. Armor value increases base damage reduction, so the value of the other short cooldowns decreases as gear improves.

If we are to assume 2200 block rate means 20% block chance (since 2200 block strength is 20% reduction), 1/5th of the time a Paladin will take 1/5th damage, which would roughly be equal to 4% passive mitigation. Using Shelltron nullifies that passive mitigation for the duration since there is no "critical block" mechanic. Passage of Arms also negates it, and doesn't stack with Shelltron, since the 15% damage reduction component is a cone behind you, similar to how Divine Veil doesn't benefit the caster.

Block doesn't work against critical hits.[/QUOTE]

TBN scales with tank health, while every other cd scales with dmg taken. If you look at the percentage increase on effective health that TBN provides it's the same as Sheltron and Raw Intuition, and it's always going to be the same. Or in basic terms things that kill you when you only use sheltron/raw intuition are going to kill you if you only use TBN. Obviously only when wearing the same gear.

Shelltron is basically a cooldown with 2 charges that starts at 0 and doesn't recharge unless you auto attack something.
With Skill Speed being a low priority and Paladin weapon having 2.24 swing timer, charges won't be gained until after 20s at least.

First, skill speed doesn't affect auto attack speed only, so the weapon speed is what you get. But considering that Raw intuition and Heart of Stone have a cd of 25 seconds, being able to only use Sheltron every 22 seconds seems fine to me. That you have to build it up initially and that downtime hurts it's uptime is a disadvantage, but in exchange you get the ability to save gauge up 100 so you can save at least one use.

If we are to assume 2200 block rate means 20% block chance (since 2200 block strength is 20% reduction), 1/5th of the time a Paladin will take 1/5th damage, which would roughly be equal to 4% passive mitigation. Using Shelltron nullifies that passive mitigation for the duration since there is no "critical block" mechanic. Passage of Arms also negates it, and doesn't stack with Shelltron, since the 15% damage reduction component is a cone behind you, similar to how Divine Veil doesn't benefit the caster.

Sou you are complaining that you don't have your freebie passive mitigation, that the other tanks don't have, while sheltron is running? Divine veil is the strongest raid cd ( except 3 cooldown Shake) and Passage still provides you with 100% block aka 20% dmg reduction to the tank. Yes you can't stack it with Sheltron, but that's really not a big deal.

Block doesn't work against critical hits.

Tankbusters have either 0% crit chance or 100% crit chance. I don't think we will see one of the later again now that awareness is gone.

And here is the thing, with the exception of your TBN argument nothing you said had anything to do with the question, if block strength should scale or not. There is one big reason why block strength should not increase with gear. Just think about block during the last expansion: at 70 it started at 22% (can't fully remember at how much exactly) and ended at 30%, so sheltron went from being slightly stronger than rampart to being on par with Shadow wall/ Vengeance. ShB brought the cd kits of the tanks closer together, every tank has a short cd , rampart, an invul. and a 3 min 30% cd. every tank except PLD also has a fluff cooldown, PLD has an additional raid cd ( and cover) instead and you could consider PoA as his fluff cd, but that would be stretching it.

Now just consider PLDs short cd moving in strength from around rampart ( where everybody else's is) to around the 3 min cd in the end. I hope i don't have to explain how this is kinda awkward to balance around.