Ring of Conjuring
From The Heroes of Might and Magic III wiki
|Ring of Conjuring|
|Effect: Worn on a finger, this item increases the duration of all hero's spells by 2.|
|You find a small tree that closely resembles the great Warlock, Brimstone, with a ring around one of its twigs. Scraps of clothing and rotting leather lead you to suspect that it IS Brimstone, transformed. Since you can't help him, you take the magic ring.|
Ring of Conjuring is a treasure class artifact, that is equipped in ring slot. When equipped, the ring increases the duration of all hero's spells without fixed duration by 2.