As Perdita, Devoted Mother activates her ability as soon as she enters play, youll effectively have a nice little bodyguard to protect her with
You could argue that Word of Command lets you control a players actions like some kind of shadowy manipulator, but I honestly wouldve liked at least a bit more detail
However, if you do and those targets are all illegal as Singularity Rupture tries to resolve, it won't resolve and none of its effects will happen
For example, a creature with hexproof will be dealt damage if it has the same name as the target creature
Fun fact: Prinplups sharp beak can crack through ice, making it a true champion of chilly battles
(2018-01-19) If your tenth permanent enters the battlefield and then a permanent leaves the battlefield immediately afterwards (most likely due to the "Legend Rule" or due to being a creature with 0 toughness), you get the city's blessing before it leaves the battlefield