Dominic the Oathbreaker

Lifelink, Vigilance
At the beginning of combat you may pay
{1}{w}. If you do, target creature cannot
attack or block until end of combat.
When Dominic attacks or blocks, you may pay {x} and X life. If you do, Dominic gets +X/+0.
"May your deity have mercy on your wretched soul
for I will not."