Bill Potts
Legendary Creature — Human
Doctor's companion (You can have two commanders if the other is the Doctor.)
Legal in
Legacy, Vintage, Commander
Rulings (13)
The copy made by Bill's triggered ability is created on the stack, so it's not "cast" or "activated."
2023-10-13
The Doctor's companion ability allows you to have two commanders if one has the ability and the other is a legendary creature that is a Time Lord Doctor and has no other creature types. Creatures with the changeling ability, for example, can't be a second commander this way.
2023-10-13
If your Commander deck has two commanders, you can include only cards whose own color identities are also found in your commanders' combined color identities.
2023-10-13
If something refers to your commander while you have two commanders, it refers to one of them of your choice. If you are instructed to perform an action on your commander (e.g. put it from the command zone into your hand due to Command Beacon), you choose one of your commanders at the time the effect happens.
2023-10-13