Prodigious Constrictor

Flash
Fragment {g/u}{g/u} (You may pay an additional {g/u} {g/u} for each {1} in this spell's mana value as
you cast it. If you do, copy it for each fragment
cost paid. The copies become tokens.)
When Prodigious Constrictor enters the battlefield, tap target creature. It doesn't
untap during its controller's next untap
step.