Turnick's Travelling Show
When the cork is pulled on this bottle, inky blackness spills out, shrouding a small area in darkness. However, the true purpose of the condensed darkness is a liquor. The drinker and all her gear become insubstantial and shadowy. Material armor (including natural armor) becomes worthless, though its size, Dexterity, and magic bonuses may still apply. The subject gains damage reduction 10/magic and becomes immune to poison and critical hits. It can’t attack, speak, or cast spells while in shadow form. The subject also loses supernatural abilities while in shadow form.
A shadow creature can’t run, but it can slide along floors and walls at a speed of 30 feet. It can pass through small holes or narrow openings, even mere cracks, with all it was wearing or holding in its hands, as long as the spell persists. The creature is vulnerable to bright light, and it can’t cross a magical boundary or enter sanctified ground. It also can’t manipulate objects or activate items, even those carried along with its gaseous form. Continuously active magic items remain active, though in some cases their effects may be moot.
The duration of the change depends on the amount drunk; a sip may last minute or two, a swig 10 or more minutes. No one has ever drunk a whole bottle and lived to tell the tale.
During the attack on Gran Palis, the draught was used up.