Bjeldor's Bane

Remove all +1/+1 counters from blocking creatures. Creatures that were blocked by any number of those creatures this combat get
+X/+0 and gain trample until end of turn,
where X is equal to the number of +1/+1 counters removed this way.
The giants' encroachment into the northern steppes stunned even Bjeldor's most seasoned veterans.