Three CRUCIAL questions on the champ pool mechanic.
If a champ is bought and sold, does it go back into the champion pool?
If a silver or gold merged champion is sold, would the number of units that get added to the pool be 3 and 9 respectively?
If a player is eliminate or quits, do his champs go back in the pool?
PLEASE, don't give your best guess. This is very important info, and I would appreciate only corroborated answers.