Arrows that leave buffs

Other than Cold/Frost arrows, which leave a hardcoded blue effect (do not want), are there any autocast arrow abilities that leave a detectable buff? (This buff needs to be able to be modified)

Don't Dark Arrows (or w/e they are called, the ones that make a Skeleton Minion) leave a buff?

Yes, but if the unit dies with that buff on it removes the corpse. I always use "Incinerate (Autocast)." It has all of the benefits with none of the drawbacks.

Orb of Corruption would be another option.

Is orb of corruption autocast? I thought it was passive.

Dark arrows also seems to be hardcoded to not work on heroes.

I tend to use Cold/Frost arrows (only one of them can use a custom buff if I remember correctly, forgot which), the blue effect isn't an issue if you remove the buff on the damage event immediately and then apply your own custom triggered buff.

Poison Arrows. And since when does Incinerate not remove the corpse?

It always left the default buff there, even with replacement buffs...

And that's true, Incinerate seems to be removing the corpses in the rare chance it kills something...

Well, you could also manually trigger the autocast (though im not too sure if thats really possible).

I think you're right.

Upon further testing, Incinerate DOES remove the corpse. Hmm.. I'll try Poison Arrows again.. I don't want to use Cold/Frost arrows, because even with the default buffs replaced and a duration of .01, the hardcoded "chill" effect remains, which turns enemies blue (and looks horrendous when used on tinted units).

So just edit that buff?

Bad in multiplayer games, because then you can't use that spell
for any other ability.

Just think about it:
2 diffrent poison spells, you hardcoded the base, so...

Did you try all orb abilities? Orb of Lignting, for example?

They are not autocast

Man, removing the corpse really doesn't matter since you should remove the buff upon detection and replace it with a triggered buff anyways.
That's why you should not be using Black Arrows. Any of the others are viable options.

It doesn't matter, if Incinerate kills a target it blows up (aka removes the corpse), buff or not.

I got Poison Arrows to do what I wanted though, so it's all good.