A Siege’s controller can’t be its protector. If a Siege’s protector ever gains control of it, they choose a new player to be its protector. This is a state-based action.
Invasion of New Capenna // Holy Frazzle-Cannon
If a token or a card that isn’t represented by a transforming double-faced card becomes a copy of a Siege, it can’t be cast as its triggered ability resolves. It will remain in exile. If it’s a token, it will cease to exist the next time state-based actions are performed.
A battle can be attacked by all players other than its protector. Notably, this means a Siege’s controller can attack it.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Diego Gisbert
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
