on drink makes scout into a flat shadow on the floor that can move with +20% speed but has +20% damage vulnability whilst in use, when effect runs out scout gains the Bonk! effect for 0.3 secconds.
+25% faster drink time so it can be used for sneaky escapes.

the idea is that the scout could use this to sneak past an enemy defense and take them out with the back scatterer or assist there team by throwing sandman balls at the enemys from behind, you could get behind enemys fast but would be vulnrable to damage whilst doing so, very risk vs reward like the powerjack.
the Bonk! effect makes sure scout isnt murdered as soon as he runs out of shadow-ness but also so he cant pop up behind someone, 2 shot crit them with back scatterer and hop away.