1-pointless:
The tactic prolong the duration of other 3 buff by 10 sec; of these 1 is uselss per see since it's redundant with ch/bo one + cost hate+ is st (toughness debuff only meaning is proc crit tactic when in sc not even debuff toughness...), 1 is useless unless slotting a tactic (which also remove the buff this tactic would then increase lol which is the outgogin heal debuff on midn killer) and the then toughness +45% which is another tactic....
2-not needed :
All these buff/debuff last 20 sec....meaning there is plenty of time to refresh em; seriusly i dont think any bg will ever have problem keep up debuff lasting 20 sec
3-useless:
Any debuff lasting more than 10 sec is subject most likely to be cleanse in meantime....now we also have 2x on each side helaer that can g-cleanse making so long debuff are even more unlikely to remain up for the full duration (so useless over 2/3 of your stuff) .....so take this tactic dont serve any purpose.
OTHER PROBLEMS
4- bg is the only tank which dont have any viable s+b build for wb and thats a fact; either all his Tools are redundant or not enough to cover for what either ch/bo can bring to the table:
Spoiler:
SOLUTION
we need to buff this in a way that only s+b wb builds can benefith from it, therefor
(rewamp into )
Worthless effort tactic:
Every time you block an attack, the attacker chance to crit is reduce by 7%
DISCLAIMER:
-Since it debuff only the attacker it can only work in wb with aoe going on; so it's not dumb mode like kobs dirty tricks and can hardly work in sc.
-iF you want to make it worth even in sc, just make the debuff apply 30 feets around you when you block
-the value taken is the sw crit tactic one (which i wanna point work on healer aswell while in this case it work only on damges dealer aoe you in the face, definetly at least in line and therefore balance)
Pro:
built as i said the tactic is in line lorewise for warhammer online with bg being a "debuffer" (focus on debuff enemy) and as much it goes with crit from 2h, bg remain a effect multipler for whole wb instead a party buffer.
Contr:
make sure it dosent debuff atk from guard...