The Wanderer

When The Wanderer enters the battlefield
return two target permanents to its owner's
hand. Then that player discards two cards.
{2}{u/r}{u/r}: Target players taps all creatures unless
target player takes 10 damage then mills cards
equal to their life total.
Exile The Wanderer at your end step, return it
to the battlefield under the next players control
on their draw step.