Vanishing Powder Grenade

[HulkOSaurus]

Does anyone know if they have an intrinsic fail chance, i.e., failing to put you into stealth?

[haze1103]

I must admit in so many playthroughs, I've never thought of using those grenades. In what context should I consider using them? If your Stealth skill is low, won't you just immediately get found on the enemies' turn?

I suppose it could be useful with high stealth if you can't LoS or incapacitate your enemies, but you have enough distance to be safe. It could also help activate stealth abilities, like Snipe.

[HulkOSaurus]

It's a very good item and - yes - you need good Stealth in order to make decent use of it.

It's just that I've observed it not putting a character into stealth even when there are enemies in somewhat close proximity(that's how I think it's working - you need to have enemies close to you.)