I didnt test any of this and i cant since i Play ruina
i mostly want to give some hints on what u might have not noticed or might have overseen.
about beyond the wall:
Ruina uses it too. And it also often appears to me that i do not seem to buff everyone i grab. BUT i noticed they do get a 10 seconds buff when i grab them, even if the visual shield is not applied. I dont know if that means they got the defense buff but not the shield, or if it simply means there is a visual bug.
As for taunting blow:
I only read the skill descriptions which tell me that u consantly provoke as Long as u do not explode the mark it sets. So u gotta run to the mob, taunt it, kite and beyond the wall every one and block in between for the buff bubbles on the ground, explode the mark for dmg and taunt again.
Like i said i dont know if im talking total bullcrap here since i did not Play Defensio but maybe theres something in there which might help or give another Point of view to her usage.
Maybe shes just meant to be something like a subtank Support... for when the guardina gets the mark on 2nd boss but defensio doesnt, she can just go and provoke it away from guard.
In the meantime she provides the Party with the 20% less dmg from the boss (with BtW used on boss i mean) while Guardian gives permanent GF. - do Justice Crash and btw debuff stack?
And for certain Events like Jasmin Position mech; defensio does not use the BtW on the boss but on the ppl to provide additional defense for the time of the debuff. Same usage on darkroom of Tacitus. - Maybe with both shields and block bubble buff even man to man might be viable?
and With the block buff u buff additional defense (and provide a noob heal which is supportive for Saints - HAHA - I mean. u can get the heal amount to 2% with skill up heraldry and technique ring lel. Its something *inserts meme*)
Actionspeed increase by Gearstep is a 5 seconds buff and does apply even to Walking. Together with her Overboost ( Defense) which increases Action Speed it might not be such a pain to cast BtW and the Long Beatdown all the time if u Combo them after gearstep and after each other properly. (something like step up - right click into leap over - spacebar - btw - beatdown exi; then use a block and continue with Rotation 2: rock away - kidney blow with AS plate for faster Animation of it - btw - beatdown exi)
And if u mastered doing this combining it with her atk skills u might aswell deal Little damage (seems like u Need gear for her)
Maybe theres something in this text that inspired some People here to go on testing stuff or try and chain different Things together. In the end its all about starting stuff with gearsteps while being buffed with overboost (defense) to increase Overall actionspeed by quiet alot to make the Long casting times Shorter.
After writing this im pretty tempted to test defensio. But i got no char Slot left