Aura the Guillotine

When Aura the Guillotine enters the battlefield, gain control of target creature for as long
as you control Aura.

{t}: Auserlese — You and target opponent reveal their hands. The player with the lowest total mana cost in their hand loses 10 life and sacrifices a nontoken creature. Players who reveal their hand this way put it at the bottom of their library and
draw that many cards.