March of the Machine: The Aftermath

Tolarian Contempt | Enchantment | | When Tolarian Contempt enters the battlefield, put a rejection counter on each creature your opponents control. At the beginning of your end step, for each opponent, choose up to one target creature they control with a rejection counter on it. That creature's owner puts it on the top or bottom of their library. | Tuan Duong Chu

Training Grounds | Enchantment | | Activated abilities of creatures you control cost up to {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. | A. M. Sartor