Abjuration
Level: Cleric 6, Rune 6
Components: V, S, M
Casting Time: 10 minutes
Range: Touch
Target or Area: Object touched or up to 5 sq. ft./level
Duration: Permanent until discharged (D)
Saving Throw: See text
Spell Resistance: No (object) and Yes; see text
This spell functions like glyph of warding, except that a greater blast glyph deals up to 10d8 points of damage, and a greater spell glyph can store a spell of 6th level or lower.
Material Component: You trace the glyph with incense, which must first be sprinkled with powdered diamond worth at least 400 gp.
Source: Player’s Handbook (Page 237)