原文The commander you control doesn't have to be your commander.
2021/07/23
原文Once you've announced that you're casting Klauth's Will, players can't take any actions until you've finished doing so. Notably, opponents can't try to remove your commander to change how many modes you may choose.
2021/07/23
原文Whether or not you control a commander is determined only once, as you choose the modes for this spell. If you somehow lose control of that commander before you finish casting the spell (perhaps because you sacrifice it to activate a mana ability), it won't change the number of modes chosen.