Realm tested - Fun
Spell - Necrotic Strike(removed in warlords of draenor, therefore no wowhead link)
Date tested - 07/10/2015
Description - The formula is wrong, because Necrotic Strike is being affected by PvP Power, see the spoiler below for the details
How it should work - The formula should be applied properly, not being affected by PvP Power at all.
Priority - 9/10, because this absorb gets bigger and bigger the more gear you get, so you can deal ~~80k per necrotic strike, and it is easily stackable to 300k, and no healer can outheal that without great sacrifices, specially on dampening.
Important Note - It seems that mastery/pvp power is not taken into the final result(since they have no effect over the Necrotic Strike).