Maewyn, Warlord of Elthara

Menace, Vigilance, First Strike
other Knights you control get +2/+1.
Whenever a knight enters the battlefield under
your control, you may pay {r}{r}{w}. if you do,
target creature you control fights target creature
you don't control.
{x}{r}{r}{t}: Goad X creatures your opponents
control.