How to get more combat XP efficiently.

[JollyGreenberg]

I have been having a lot of trouble getting combat xp, I'm lvl 19 and trying to get to 24 to unlock the crimson isle, but I cant seem to find an effective way to grind combat XP, I see people yap about Bestiary a lot, and I agree. I just need more methods to help me since some of the XP requirements can be daunting for a new player like me. Pls help

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