| tobmind |
So the effect of the spell Spellwrack requires that a creature is affected by a spell with "a duration". It will then deal damage to that creature and reduce the duration of the spell effecting them by a round, each round.
Sigil can be cast on a creature.
level 9 Sigil has a duration of infinite, but still a duration. Or 5 minutes to scrub off (if you leave it somewhere they can reach it, or if they know its there)
Sigil + Spellwrack = death.