Dear Walrein,
You are Kirby.
You are the small pink puffball who is the mascot of the Kirby series of video games. Your main power is the ability to suck up enemies and absorb their powers. You often have to fight with Meta Knight and King Dedede; this rivalry recently spilled over into the Super Smash Bros. series.
You will be sucking up your enemies like usual. At night, you may send zorbees a PM titled “Night X - Suck up <user>”. Your target will be sucked into your mouth, essentially removing them from the game.
During the day, you must decide whether to spit out or swallow whoever is in your mouth. During the day, you may send zorbees a PM titled “Day X - Spit out”. Your target will return to the game, but you will permanently be able to use their ability. Alternatively, you may send zorbees a PM titled “Day X - Swallow”. Your target will be killed. You know that there are some roles that you cannot copy.
You are on your own. You win when you are the last man standing.