+Knight, +of, +Grace (2)
Vigilance
, : Create a 2/2 white Knight creature token with vigilance.
, , Tap X untapped Knights you control: Destroy target creature with power X or less.
First strike
Hexproof from black <i>(This creature can't be the target of black spells or abilities your opponents control.)</i>
Knight of Grace gets +1/+0 as long as any player controls a black permanent.
Gatherer works better in the Companion app!