An awesome unit to convince you that bannering into Night's Watch might be worth it. Their power level is very comparable to most of the 6 cost characters in the game, and they have a decent defensive ability to go with it.

If you're bannering , they can use Longclaw and a 6 strength bicon with Renown is nothing to sneeze at.

They also have one of the coolest pieces of art in the entire Core Set, imo.