Potential Praetorian shield break glitch!
Doing Vault of Glass, I used a combination of abilities to break a praetorian shield and kill them without the aegis. I used moebius quiver tether, Witherhoard, and trappers ambush and it somehow broke the shield. my guess is that the game takes your damage to another enemy with things like weaken and tether and sets enemy damage at a percent, and when the debuffs were changing in strength and presence rapidly, the damage bit 1x for a single frame, in which Witherhoard dealt a tick of damage, leading to the shield breaking. this could lead to 2 man gatekeeper being once again possible, as the relic isn't needed, and could be a revolutionary new glitch. I will do more testing in the future.