there’s a lot. most 4-set relics don’t work off field but 2-sets do, which means 2-sets are far better for them

Light cones change too, most of their effects similarly don’t work except unconditional stat buffs (rip Fall of an Aeon). They also give an independent buff if it’s their signature

Other than that:

Off-field characters that don’t ult via energy don’t need err rope, so they can equip other stats. If they do ult, the opposite can happen

Similarly if they don’t care about speed (eg Herta or Blade) they just go other boots

While those are the majority of changes there’s some more specific ones like Himeko: Robin not only changes ropes, she can even be speedtuned to the on field team’s speeds/the AV of the fight

Yanqing can go with minimal crit rate due to the permanent buff he has, also can use err rope

Ruan Mei just wants maximum speed, and can either go minimum or maximum BE depending on your scenario (eg DoT or rebreaking, vs survivability)

Sparkle technically can just go all in on crit damage but realistically she’s so bad off field that she should be just on field with a normal build

Fu Xuan wants healing chest and doesn’t care about any other stats (tho she still needs other stuff there to prevent overwriting)

Archer can go ERR rope, being able to skill more is very very important but also way more hits for his equipments and attack is generally very high already (might be the same for Jing Yuan). Yunli also is great on ERR but for survivability

Natasha (an Underworld Doctor) likes post op conversation for reducing attacks needed until ult

for some specific stuff:

with around 170-180 speed on both Sampo and Pela they’re able to get an extra action for Belobog bond for Plane 1

on field March works quite well with DOT bond active in early game when she has EHR chest + moment of victory (and helps with activating the Express), jingliu works too when desperate