Master Rune of Sealing

Abjuration (Ward)
Tier: 2
Components: Rune
Casting Time: 1 minute
Range: Touch
Target: One closed door, window, or container marked with the rune
Duration: Permanent until breached
Saving Throw: None
The abomination recoils in pain, its claw-like hands scorched by white fire.

This rune magically seals a door, gate, window, container, or the like. The sealed door is effectively stuck shut; it can be broken open with a DC 25 strength check (unless the Break DC is higher than 25) or simply dealt damage until it is breached.

Additionally, any daemon or undead creature which touches the door takes 1d6 damage per caster level.

A sealed door resists Knock and counts as a tier 4 spell for the purposes of Dispel Magic.

Runic Power:
The break DC is increased to 30 and the damage is doubled.