Mist Crabs

Whenever a land enters the battlefield, the next
spell played stalls out for 1 second + the power
of Mist Crabs. Copy this ability for each other
crab in play.
Sacrifice Mist Crabs, search your library for a copy
of Staller Wastes of Time
and put it onto the battlefield untapped with
an amount of time counters equal to the power of
Mist Crabs.