Bill, chimney invader

if Bill, chimney invader would die, and it does
not have a wounded token on it; prevent all
damage that would be done to it, give Bill,
chimney invader a wounded token, and put 2 0/1
white guinea pig creature tokens into play with
"{w}, {t}: prevent the next 1 damage done to target
creature."
Who's to go down the chimney? - Nay, I shan't! You
do it! - That I won't, then! Bill's to go down - Here,
Bill! the master says you've to go down the chimney!"