NPCs & Enemies Some enemies should be vunerable/invunerable to more debuffs.

[UlticraftMTT]

There are a lot of enemies that should be vunerable to more debuffs in terraria.
I hate it when enemies are immune to debuffs, as they render weapons that are for debuffs useless.

• First of all, Dungeon Guardians should be immune to ALL debuffs.
• Wyverns and Surface Mimics shouldn't be immune to Poisoned, On Fire!, Cursed Inferno and Shadowflame, Wyverns look like they have fluffy, Scaly Skin, Mimics that generate on the Surface look like they're made out of wood, and fire burns wood.
• The Destroyer should be vunerable to Ichor, Daybroken and Frostburn.

 

[PTpirahna]

I think the Destroyer is easy enough without making him even more susceptible to Golden Shower than he is now.

 

[Mihn]

Destroyer used to be affected by Ichor, but they removed it because it would be too easy.
And yet it's still easy now.

 

[SteveisNoob]

First of all, Dungeon Guardians should be immune to ALL debuffs.

Completely agree this!
Edit: I haven't fought with a Dungeon Guardian, but I think it should be immune to all debuffs.

The Destroyer should be vunerable to Ichor, Daybroken and Frostburn.

The Destroyer is already one of the easiest bosses in Terraria, you should just know you need multi-target weapons as the Destroyer has lots of vulnerable points