Guillaume de Launfal

At the beginning of your upkeep choose a
creature you don't control with greater power
than Guillaume de Launfal's power. Guillaume
de Launfal fights that creature. If the chosen
creature dies this turn, put a virtue counter on
Guillaume de Launfal.
{2}{g}{w}, Tap an untapped Knight you control:
Guillaume de Launfal gets +X/+X, where X
is the tapped Knight's power.