The ability always happens on your turn, which means you get first use out of it as well
This allows you to build some insurmountable boards very quickly indeed
+2: Up to one target creature gets -4/-1 until your next turn
It's not like you're going to need to monitor another list that oscillates
Some of the more sought after (read: expensive) cards on this list are: The original five Phyrexian Praetors Ragavan, Nimble Pilferer Atraxa, Praetors' Voice Skithiryx, the Blight Dragon The Brothers' War The Brothers War was the first official printing of serialized cards, and it was hot out of the gates with all 63 of the cards on the Retro Artifacts bonus sheet included in their sketch printings
Meanwhile, the Returners resistance movement carries out covert operations, pursuing their goal of liberating the world from the Empire's oppressive rule