Arms of Ahriman
(replaces high level Oblivion):
The Abyss is a terrifying and unruly domain. Filled with immense trepidation, and shadowy denizens unlike anything that walks the mortal plane. Clan Lasombra have a unique relationship with the energies of this dark and twisted place. They have spent centuries harnessed it's gift, and weaponising them against their enemies. The Arms of Ahriman - and the art of Obtenebration - are evidence to support this claim. With this power, a magister can summon abyssal tendrils to wrap around an opponent and hold them in place. Try as they might, for as long as the Lasombra concentrates uninterrupted: escape is but a futile pipe dream, as the very shadows themselves betray the victim.
[ System: a player using this power can incapacitate a single opponent, rooting them in place for a duration of time (and effectively paralysing the target) for a maximum of 5 minutes (unless negotiated otherwise), and as long as they have unbroken concentration on the target. If they are attacked themselves, the power breaks and the opponent is free.
A player with HIGH LEVEL POTENCE can spend an appropriate amount of time roleplaying breaking out of shadowy tendrils; and a player with LOW LEVEL CELERITY can use their power to dodge this attack.
As with all physical interactions at our event, the players should drop Out of character to negotiate the outcome, as well as physical boundaries, ro ensure that no one gets hurt. Fighting in this manner is akin to stage fighting, and all involved should have discussed the outcome before it happens, even briefly]