Venger, Cruel Archmage

When Venger, Cruel Archmage enters the battlefield, separate all non-land permanents
target player controls into two piles. That player sacrifices all permanents in the pile
of their choice.
{1}{u/r}: Exile Venger, Cruel Archmage, then
return it to the battlefield under its owner's
control. Activate this ability any time you could
cast a sorcery.