Well, here's your update:
- Nope, the +block is still on there.
- Doesn't say +5% crit; that may have just been a Curse error.
- It is deep, but since he drops a raft of stuff, it took only two kills

As for the proc, well the proc has serious issues. The combat spam reports, twice no less, that it does anywhere from 400-800. Healing. On the mob

And just to make it more interesting, double green numbers float up over the mob's head when it goes off. BUT, judging by the opponent's health bar, it damages them twice for the proc amount, and then almost instantly heals up one of them. So it does appear to be a straight damage proc, despite all the nonsense. The one thing that has me a little excited is runners. If it goes off when a mob is at low health and the double damage drops them below 0, they don't get one of the damages back, so it's very handy for ending fights, which disciples tend to suck at.
Now I know that the mob health bar hasn't exactly been a shining beacon of truth in the past, but I can definitely say that fights with a lot of procs end much sooner than those without them, or with a different weapon.
It uses the same model as the "Heartsworn" windblade; kind of a wavy/spiky look, so nothing new there.