i aint fully felt out tb, but in rtwp, knockdown/mule kick is an extremely effective way of interrupt spamming a low fortitude enemy caster into pointlessness. i got crazy mileage out of that ability, esp when partnered with the willbreaker and body blows. honestly, knockdown is one of the main reasons id take a fighter.
Helps that fighters are built to survive an early deep dive into the enemy backline, so not only do they have reliable lockdown, they can get into a position to deliver it, then *stay* there. Other classes may have harder, longer cc (oo er missus) but they risk a lot more to land it.
Even if the defered recovery element of knockdown remains crippled in tb, so long as it disables engagement, interrupts casting and provides an alternative to targeting deflection, it would be worth using i feel.
EDIT: also ye, a % debuff to defenses would be bonkers. Accuracy and defenses increase roughly in lockstep so a % decrease would escalate in power with each level up to the point where the whole game would revolve around it. Imagine being able to debuff a mobs deflection to under 50 before wailing on them with an on crit weapon with 100+ accuracy. A fighter/skald taking advantage of that would be nightmarish.
Edited by Triple - A Foxy Lad, 04 February 2019 - 10:01 AM.