Though I haven't yet seen this item in-game, I'm willing to wager it gained the same effect that 'Sparkthorn' did.
Clicky effect added with today's patch: "Trushar's Recovery," (Spell Effect: Causes your body to under go the recovery of Trushar, increasing your health at the cost of mana.)
I thought undergo was one word.... ;)
Feel free to confirm this.