Charlie, King of Rats

Charlie, king of rats — Create a 1/1 black rat
token at your upkeep.

Charlie work — {t}: Tap ten permanents you
control, tap all permanents opponents control.

Clean up the bar — {8}{w}{b}: Destroy all creatures.
Each opponent loses life equal to the number of
rats that died this way. You gain life for each life
lost this way.