We are halfway the thirty-day challenge now starts a series of favorite type of monsters. Starting with undead is a challenge in itself, there are so many. strong and weak to pick from. I reviewed most of them and in the end I had to pick between 3 monsters. So an honorable mention goes to the Dracolich and Dead Knight.
Living in isolation from the world the all-mighty wizard sits in his tower studying his newly acquired tomb of spells. He has all the time in the world since he can’t die, well unless you find his phylactery. My favorite undead is the Lich.
The Lich is a perfect big bad evil guy you can use as the end boss in your campaign. They are evil and want to gain power. To stay alive they need to sacrifice souls another reason to stop them.
Part of defeating the Lich is finding out what his phylactery is. Without destroying it the Lich will just come back to life. So you can create an interesting quest to find out what the phylactery is and how you can destroy it. After that an epic final battle with the party against the lich and his minions can be the perfect ending of a campaign.
There are a lot of possibilities a Lich can interfere with the parties plans (even from earlier levels) so the possibilities are endless.
Liches are awesome.