Guild Wars 2

A horde of orcs is wandering through the countryside looking for towns to pillage when the chieftain spots a lone dwarf standing on a rocky outcropping atop a nearby hill.

The dwarf yells as loud as he can, “I am Bjorn Bjornson and I dare you to send your best warrior up here!”

The orc chieftain points at this best warrior and off he goes around the outcropping. The dwarf jumps down and the sounds of battle are heard. Seconds later the orc’s head comes rolling down the hill.

The dwarf climbs back up and yells, “I am Bjorn Bjornson and I dare you to send your two best warriors up here!”
The orc chief points at his two best warriors and off they go. Moments later there are sounds of battle and then both orc heads come rolling down the hill.
The dwarf climbs back into view and yells again, " I AM BJORN BJORNSON AND I DARE YOU TO SEND YOUR 10 BEST WARRIORS UP HERE!!"
The orc chief waves and his 10 best warriors run around the outcropping. After a few seconds, all 10 heads come rolling down the hill.

The dwarf climbs back up on the outcropping and yells, “I AM BJORN BJORNSON AND I DARE YOU TO SEND YOUR 100 BEST WARRIORS UP HERE!!”
The orc chief motions and 100 orcs charge up the hill. The clash of weapons starts ringing down the hill and dozens of orc heads start bouncing across the ground.
Eventually, one orc comes running back down and starts screaming, “Boss, it’s a trap! Dere’s two of dem!”

:-)