Summon Aery change.

I was thinking how Summon Aery can be really oppressive or really underpowered, especially for champions you can't make use of something else, like most mages.

So I have the change in mind. "Using Summon Aery for the same reason (damage OR shield) as the last time makes Aery 50% more effective".

The base numbers or % numbers can be changed to make it balanced, but that's the main idea. It should be ok on something like Janna, where you mostly change its reason (W poke procs it, but sometimes, you use it on E shield, so you don't get the 50% bonus). On most mages, like Viktor, though, you almost never get the shielding part, therefore you would get extra damage almost always which is what the mages would need. I mean, since they can't really make use of the second part (extra shield), it seems fair to grant them stronger outputs in the one they can make use of, especially seeing how they can't really make use of any other keystone that well.

In order to avoid making it abusable and OP, maybe there can be a time limit where you get this bonus. For example, until after 15 seconds of using Aery to deal damage, the next time, Aery's damage is increased by 50% (same for is used with the shielding). This would help in not making it abusable in lane, because the only way to make this work is basically spamming abilities off cool down, which would make you run out of mana pretty fast.