Boomeranger Build?

[Darkcake99]

What should I be building on this cool dude, I'm quite confused.

[Sebastian]

this is a bit outdated, but it should still work for boomer:
https://docs.google.com/spreadsheets/d/1S8bNjfqS0yJFsWuQ6bkeAfaMJZIDkxYo2wZZRQtyWp4/
dont get HR though. for allies, just check the wiki, it has good info on why to choose what ally:
http://trove.wikia.com/wiki/Boomeranger
for gems, this seems to be the best setup, not only for boomer:
http://forums.trovegame.com/showthread.php?95759-Ideal-Gem-Stats-Boomeranger
you may want to calculate the ratios of MH/MH% and CD/CH yourself for for slightly higher health and DPS.