Glyph seal

This multicolored, thumb-sized opal is carved with a variety of arcane symbols.

A glyph seal allows you to convert any arcane or divine spell of up to 2nd level into a symbol similar to a glyph of warding. To do so, you must cast the spell while holding the seal; doing this is called keying the seal. You can safely transport a keyed glyph seal until you activate it by pressing the seal to the desired surface. The seal can adhere to any nonmagical, nonliving object. An activated glyph seal functions as the spell glyph function of a glyph of warding and can be detected and disabled as a magic trap (DC 30).

A glyph seal is unaffected by the spell within it. Once activated, the now-empty glyph seal can be retrieved and used. You can always remove any glyph seal you keyed and activated to redeploy it elsewhere.

Greater glyph seal

A greater glyph seal is similar in appearance to a lesser glyph seal, except that the arcane symbols etched upon it are more complex and ornate. The greater glyph seal functions like the lesser sort of glyph seal, with the following exceptions: it can be keyed with any spell of up to 5th level, it functions as the greater glyph of warding spell, and the check DC to detect or disable it is 33.