I was looking through my old folders and found this - one of the cards that I made up that's in the 10 card cycle - of which Learning Options is part of.
When I made this more than 2 years ago, I thought it was something that by common sense would've been suggested or printed at some point. We either haven't reached that point - or someone is holding out. :D
I've had a look back at my imaginary burst mechanic, and I realised that for the most part I didn't cost it aggressively enough - although I realise that Wizards has recently done something that makes it possible to now cost it correctly (by my standards, not theirs). I might revisit some of those ideas and give them a tweak - since I think Burst is an awesome mechanic. :D