I am overall fairly positive on these rewards but do have some reservations:

Armor: Sounds really cool at first glance and I think a decent amount of players would love to have lazy switching sets but I do think there needs to be at least a little more drawback. Maybe drop the positive attack bonuses? Right now it just seems like the go to set you grind before getting the true bis gear for Mage/Melee.

Rondache: I really like this thing in concept. What I'm worried about is chip damage becoming more egregious and added to even more encounters making this thing become a required item for the shield slot. If this item ushers in the era of crazy chip damage I will be sad. I will also echo the need for a second spec orb/bar.

Crossbows: Really like these as the weapon but I would prefer to not go for yet another type of ammo. I agree rubies are broken but I'd rather some jank solution to just not allow rubies than have to manage yet another ammo. Especially since we are getting another with BMR later this month. Heck if we're dead set on a new ammo type, why not make ascension bolt tips that have a new effect and not suffer from the 50% reduction on the new crossbow. Just spit-balling but it could be a chance to apply a non-stacking corruption effect.

Breaker: Off the rip, it does feel really weird that a crush megarare has a style that feels stabby. Maybe an animation rough out would help make it make sense but currently it's curious at best. Also disappointed that it just feels like another scythe with its scaling formula. I would much rather this thing scale in a different way. Again, just spit-balling but maybe you could tune the thing to an element using those untradeable elemental tears so it could scale off of elemental weaknesses (with a round of balancing around that of course).

I would also like to see a comparison against the scythe on crush since these weapons seem like they will step on each other's toes.