Novice set that gives a low lvl skill from each of the main classes: Bash Lv ?, Soul Strike Lv 3, Heal Lv 1, Double Attack Lv 2, Attention Concentrate Lv 1, Enlarge Weight Limit or Identify.
A set that gives bonuses if you're soul linked, does little otherwise. It wouldn't help linkers directly, but could help promote carrying a linker around, especially if it can boost the less stellar links (priest, knight etc).
Item that gives bonuses if you're standing on specific bard/dancer ensembles.
Something for brandish spear. Don't know why or how, never really used the skill.
Gear that boosts sightrasher, opposite to the frozen set. This is already on our big list of suggestions, but i'll post it anyway for possible discussion. Something that boosts sightrasher damage drastically but increases its cast time and/or delay, to turn it into a big burst skill similar to full buster.
Something that makes Gravitation Field nice.
Like Okajoe said, something that makes trapping hunters a thing. Either straight up damage boosts, or causes statuses depending on the traps, who knows.
Something that makes slow poison and BSS worth using.
Something that improves the Demonstration Skill... No particular reason
A gear, set or card that makes it worth spending acid bottles on acid terror. Same goes for marine spheres and plants that aren't parasite/geographer, though these would require edits to the mob stats/skills and not a gear.
A gear that gives bonuses if you have the useless rogue skills (cleaner, etc).
