I'm running an Old Republic game and wanted to introduce Rakghouls to my players. These nasty little vermin are fairly easily dispatched and best dealt with at range but they do offer an element of risk or fear that can be beneficial to a game. Rakghouls don't do a huge amount of damage and one on one much risk to a player except for the dreaded Rakghoul disease. If a player contracts the disease he can be saved by injecting himself with Rakghoul Serum which requires a successful medicine check. He also needs to make a resilience check which if he passes, the serum takes effect and negates the plague.
I have also introduced a Leviathan to my players. In fact the guys have fought three of them now, the reason being that the first time they went up against one I was so nervous I made a lot of mistakes and I wanted to do better. The second time I messed up with the rules regarding critical hits so the third time was supposed to be third time lucky.
I still haven't perfected the combat roles for the two but I come up with my own custom stats after doing some research online, looking at various wiki pages, forums etc...
Here is a link to dropbox where you can find and download these files. Please feel free to use them and give me your feedback, I'd be open to any suggestion on ways to improve and I'd love to hear how you have used them in yours games.
https://www.dropbox.com/sh/oc48637vibzso1c/AADGFUvHDftV1kDl9OZUbWUQa?dl=0