A few notes:
1. Glad in general it's a hit.
2. Note that fairies, in the main, still aren't meant to be the toughest sort of bosses the game will ever throw at you. If I had a 10 point scale, I'd give them maybe a 3/10 while the bats are 1/10 and most of the other bosses range from 1-3 as well. Part of the reason the fairies are a 3 IMO is that they are actually very VERY hard if you don't use the right tools for the job, they are wicked difficult. But if you have just the right tool, they get much easier.
3. In terms of other stuff that would work as well as launch meteor but doesn't require a mouse, check out creeping death. And more stuff will be coming with time, too.
4. TAB targeting has some issues in mantis already about the selection logic that I will try to get to this week, as I know that would make things a lot easier for some folks in particular.