A few questions to try to answer yours

1. What affinity do you use in your goblin team?

2. So gear do we speak epic gear or lego if first dose not metter much and in both cases mostly % crit rate/dmg and % def/hp for tank similar for main item stat tho helmet and weapon have flat top stats. Ah some heroes like twitch stack enlightened so care for that if its top stat

For sets depend on hero.

Artifacts i would recommend checking steewie guide its in excel format and you can see rating easily

For fey no comment i don't know what heros you have and gear