Add stormhammer support for magi

[keneanung]

Add a configuration to use stormhammer for magi

[zylvyn]

Would you want logic to be such that 1-2 targets = regular kill method, 3+ targets will stormhammer the first three?

[keneanung]

I have no magi, do I have no idea what's more efficient (time and/or willpower wise)