If we can suggest tasks then I have a really mean idea for a task: At some point in the first 30 minutes of the session you must place lava on a player and run away without helping them. For the rest of the session, you must attack that person anytime you see them for a minimum of 1 heart.
So if Ominous Life is a combination of Timed Life and Secret Life, and Timed Life is a combination of Secret Life and Limited Life, then Ominous Life is a combination of Secret Life and Limited Life and Secret Life.