Talk:Shen/@comment-187.66.237.150-20101113192858/@comment-3067750-20101113223532

The 10 / 20 / 30 / 40 / 50 heal is over 3 seconds. If you strike before those 3 seconds are done, the buff is refreshed.

The main part of the skill is its damage. The healing portion is just a secondary effect. However, the healing is great especially if you're building a little AP.

One thing to remember though is that your allies get the healing effect as well when they attack a target with Vorpal Blade on them.