User blog comment:Mineko Charat Lucky/What makes Platinum players different from Gold, and Diamond to Platinum?/@comment-5514182-20131028021347

As an initiator, and this applies to many champions: Malphite, Annie, Ashe; You mustn't be afraid to ult and start the fight on your own terms. If you can catch the enemy carries in even the slightest bad position in a stand-off, ult or flash ult them if your team is in a position to counter it. Don't wait to get engaged on yourself.

This can apply to a flash into a crystal wall by Anivia (Maybe). If you can get a champion with no escapes caught, they'd have to use flash in return at the very least.