Potion, rare
Beads of this cloudy gray oil form on the outside of its container and quickly evaporate. The oil can cover a Medium or smaller creature, along with the equipment it's wearing and carrying (one additional vial is required for each size category above Medium). Applying the oil takes 10 minutes. The affected creature then gains the effect of the etherealness spell for 1 hour.
Notes: Movement, Utility, Consumable
Ghost goo
DM "Your party has been given only four flasks of oil of etherealness to deal with the ghost uprising. You'll have to decide which of your six teammates gets them."
PCs 'We use it on the giant mech dragon'
DM "That's too big it would take..."
PCs 'Four flasks! We coat the mech dragon and get inside!'
DM " *sigh* .... okay."
jaja
nocie
Ha! Great~