Time Stop Wall

Chose one:
•Tap target creature. It does not untap during
it's controllers untap step.
•Chose creatures with a total power of up to 8.
These creatures are to be treated as if they had
been blocked if they attack before your next
untap step.
"You claim that no prison can hold you? But time
already has it's hands on you."
—Zeitkrümmer, transtemporal observer