You Get What You Give

Multikicker Anything(As you cast this spell, you
may pay literally anything. Sacrifice a creature,
discard a card, spend your whole life total, literally anything.)
For each cost paid, your opponent is required to
do the same. (Not counting the casting cost.)
Exile You Get What You Give with X delay
counters on it. When there are no delay counters
on You Get What You Give, at the next upkeep,
add it to the current players' hand.