Treita

This focused entirely on the boss battles when there's an unbelievable amount of weapons and accessories that could be added as well. Meowmere was already brought over and has been immensely enjoyed by anybody I've talked to. Terraria has a summoner archtype with weapons that enhance their follower's attacks in various ways. Not to mention the melee weapons and bows/guns.

Pals having boosting effects on PCs, accessories that help resist elemental damage, AoE status effects from elemental bombs, new decorations for homes, all options Pocket Pair and ReLogic could agree to share.