Skullcrusher

Tap all creatures blocked or blocking
Skullcrusher, theses creatures doesn't untap
during their next untap phase.
"Sure their needles-like teeth and claws are nasty but
their tail-mace is the true danger. They constantly
keep it in movement over their head and smash their enemies in a split second. I've seen rocks being crush
into bits by one hit of that thing."