User blog comment:Emptylord/Custom Champion - Averdrian the Mind of Oblivion/@comment-4533178-20120410215251/@comment-3974211-20120410220131

You require your Astral Barrier in order to cast abilities, so yes, without it you cannot.

As for raising your shield strength, you convert the damage you would take. Using Lockdown (original) doesn't consume the shield, you still keep it after ward. The animation will look different, so you can tell the difference.

I dislike your ultimate idea, sorry. Ion Cannon is a must. ;)

0.2 scaling is too terrible to be worth considering... it would be the weakest shield in the game. Karma, Sion, Orianna, heck even Lux has a more than 0.5... and most are close to 1.0. Problem with an AP scaling is that Detonate would then have 2 AP scalings... one from the shield creation, and a second from the detonation.