Derek Blunt, Legendary Agent

Vigilance, First Strike.
At the beginning of combat on your turn, target creature an opponent controls must block Derek Blunt, Legendary Agent. Untap that creature if it
is tapped.
{1}{w}: Derek Blunt, Legendary Agent gets +0/+1
until end of turn.
{1}{r}: Derek Blunt, Legendary Agent gets +1/+0
until end of turn.