User blog comment:Mineko Charat Lucky/I propose that Flash should really be reworked/@comment-3176379-20130812152452

Flash should have 1 second delay, and be increased by 1 second everytime you receive damage while waiting for the delay to finish, up to 3 seconds (pretty much like Rengar's Ult)

That way you make it pretty crappy for escaping, and introduce the need of being skillful while using the spell.