Demonic Summoning Stone

From Guild Wars Wiki

Demonic Summoning Stone
Rarity	Rare
Skill	Summoning Sickness
Type	Summoning stone
Value	Can't be sold
Stackable	Yes
Campaign	Factions
Uses	1

Double-click to summon a Oni ally of your level that lasts for 30 minutes or until slain in combat. Summoning stones can only be activated once every 60 minutes per character, and only one summoned ally from a summoning stone can be present in an instance at a time. This item can only be used in explorable areas.

[edit] Acquisition

Drop from The Deep's end chest.

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Summoning stones
One use	Amber Arctic Automaton Chitinous Demonic Fossilized Frosty Gelatinous Jadeite Mercantile Mischievous Mysterious Mystical Zaishen
Infinite uses	Igneous