The effects in choice 5 are status effects. What I mean as far as creating these types of skills is to allow the player to create them, not only the developer, as I’m not sure how much of this could be exposed to the player.
Status effects, for example, bleed/burn/dot are X damage over Y time… I suppose that for each dot damage type, a different particle effect/decal would be used. Other things though would be mezz effect (Zzzz or somethign above the character’s head?) etc…