[Server] Slayer task (bosses) + other small suggestions

[Jabast]

Originally Posted by Pro Noob

Another idea would be to make a key in which you can only get as a drop from your monster that you have been assign. This key would then give it's own reward from a table. This key will also be stackable, so you can have multiple keys. The ring of wealth could then increase the chance of this key to drop.

So yeah we could sure make slayer abit more profitable if needed in the future.

This could easily be done by introducing crystal keys & chest, and perhaps changing the current crystal key into a different one? or is that too much of a hassle? Crystal chest could then have an extremely low chance of introducing something new.