Bruh. Let's see here
Urgot- He is unique and has unique mechanics and ult. (homing, ult switches you and enemy) Just needs rework. Passive removes armor
Jayce- Has a 2 weapon kit, like nidalee, as well as also being impressively able to be built as almost anything, except for ap really. Passive gives damage
Yorick- Is 100% unique, but needs a rework :( GHOULS EVERYWHERE. Passive makes tanky
Swain- His kit is DOT's galore and just wading into the enemy team. Basically a DPS tank character when it comes to teamfights. Passive gives mana sustain
Karthus- His ult, his q's mechanics of hitting only one person, his magic pen wall, and his toggle aura. All unique, amirite? NOT REALLY DEAD passive
Galio- Has some generic abilities like his Q and E, like the speed up mechanics and his ground targeted slow. However, his w, which can heal him from TURRETS late game, and his ult, which is one of the only cc's able to cc entire teams. Great tank-like passive, allowing him to do great in the mid lane.
Xerath- He is somewhat generic kit, with a skill shot stun, a ground targeted slow, and a skill shot growing larger you wait. His ult is only "unique" ability besides passive.
Skarner- He has a "Lets go choo-choo-zoo" ult and can basically spam damage DPS constantly, which is effectively a great way to deal a lot of damage, but is not a very good "Meta" pick anymore really. His passive can make him powerful if you utilize the crystals, otherwise, you might not wanna play him.
Singed- HE IS STILL META AND ONE HUNDRED PERCENT UNIQUE! He is a character entirely based on people chasing him. NO OTHER CHAMPION IS LIKE THIS! Some champions like being chased, yes. But their kit doesn't resolve around it! Also, his passive means to build him as basically a tank, so..