Glyph of Oblivion

3-level Abjuration (ritual)

When you cast this spell, you inscribe a glyph that later unleashes a magical effect. You inscribe it either on a surface (such as a table or a section of floor or wall) or within an object that can be closed (such as a book, a scroll, or a treasure chest) to conceal the glyph. The glyph can cover an area no larger than 10 feet in diameter. If the surface or object is moved more than 10 feet from where you cast this spell, the glyph is broken, and the spell ends without being triggered.   The glyph is nearly invisible and requires a successful Intelligence (Investigation) check against your spell save DC to be found.   You decide what triggers the glyph when you cast the spell. For glyphs inscribed on a surface, the most typical triggers include touching or standing on the glyph, removing another object covering the glyph, approaching within a certain distance of the glyph, or manipulating the object on which the glyph is inscribed. For glyphs inscribed within an object, the most common triggers include opening that object, approaching within a certain distance of the object, or seeing or reading the glyph. Once a glyph is triggered, this spell ends.   You can further refine the trigger so the spell activates only under certain circumstances or according to physical characteristics (such as height or weight), creature kind (for example, the ward could be set to affect aberrations or drow), or alignment. You can also set conditions for creatures that don’t trigger the glyph, such as those who say a certain password.   When you inscribe the glyph, choose banishment or death rune.   Banishment Rune. When triggered, this rune pulls all those caught in it's perimeter into a random demi-plane for up to an hour. Each person caught in the field must make a Charisma Save or be banished. Elementals and summoned creatures go back to their plane of origin.   Death Rune. When triggered, each participant makes a Constition Save or be subjected to a life draining rune. Each character suffers from 4d10 necrotic damage, half as much on a success, and gain a point of exhaustion. Undead and Constructs are unaffected. If any plantlife exist under the rune, it withers and dies.
 
At higher levels: At Higher Levels, when you cast this spell using a spell slot of 4th level or higher, the damage of an death runes glyph increases by 1d10 for each slot level above 3rd. If you create a Banishment Rune, the creatures remain trapped for an additional hour.