Wary Halberdiers

Wary Halberdiers enters the battlefield with three halberd counters on it, and it can block an additional creature each combat for each halberd counter on it.
{1}, Remove a halberd counter from Wary Halberdiers: The next time target creature blocked by Wary Halberdiers would deal damage this turn, prevent that damage.
"For the king, keep them at bay!"