Hey Owltoid,

You need to type the proc spell id, not the talent spell id. Try 33151

http://www.wowhead.com/spell=33151

If you notice on this page at wowhead that this spell has a duration of 10s, where the talent versions don't have a duration.

Make sure you fill in 10 for the duration, choose a colour and hit the save button!

Let me know if that works for you.