See, now this is the kind of depth I would like to have in the game. Interactions between class skills and sets are virtually non-existent. If we had more sets that could alter a way we play a class or skill line, this game would have far more diversity other than "how much weapon/spell damage do I get from this set?" That question is literally what any build boils down to when deciding on what to use, and of course the sets which give you the most potential amplifications will be the only relevant ones.

When they announced Necromancer class and skills, I fully expected Templars to be able to use Repentance on Necro-generated corpses, which would have led to some interesting synergy between classes, but no devs had to kill any depth and fun there.

I'm hoping to see this too, there are several set effects that create interactable objects which don't currently generate corpses.

Monster Sets:
Chokethorn
Engine Guardian
Maw of the Infernal
Selene
Sentinel of Rkugamz
Shadowrend
Tremorscale

Sets:
Coldharbour's Favorite
Morkuldin
Mad Tinkerer
Infector(Defiler)
Icy Conjuror
Hven of Ursus
Scavenging Demise
Winterborn
Unfathomable Darkness
The above mentioned Plague Slinger

Not Sure Sets? (Says Summon but might not make sense that it creates a corpse):
Nerien'eth
NIghtflame
Flame Blossom
Frozen Watcher
Lord Warden
Hagraven's Garden
Stormfist
Trinimac's Valor

Sorc Pets should create corpses, can't remember if that was changed.

Werewolf Pets should also create corpses.
Leave our corpses alone!

You might notice that several of these sets don't currently see an enormous amount of game play.

They have specifically patched out the ability for these sets to leave corpses. Some of those used to be able to be repentanced but have since been changed.