Swear Fealty

Flash
When Swear Fealty enters the battlefield, target
creature you control gains protection from the
color of your choice until end of turn.
{3}{w}: Tap target creature. You gain 1 life.
"Here do I swear fealty and service to Gondor in peace
or war, in living or dying, from this hour henceforth
until my lord release me or death take me." ~ Pippin