16 Apr 2021
If at least one target is still legal as Witherbloom Command tries to resolve, it will resolve and do as much as it can.
16 Apr 2021
If you target yourself with the first mode, you may return any land card to your hand, including one you just milled or one that was already there.
16 Apr 2021
If all of Witherbloom Command's targets are illegal as it tries to resolve, it will do nothing.