Dogmatika Fleurdelis, the Knighted (ROTD-EN008)

During the Main Phase if a monster Special Summoned from the Extra Deck is on the field (Quick Effect): You can Special Summon this card from your hand then if you control another Dogmatika monster you can negate the effects of 1 face-up monster on the field until the end of this turn. When your Dogmatika monster declares an attack: You can make all Dogmatika monsters you currently control gain 500 ATK. You can only use each effect of Dogmatika Fleurdelis the Knighted once per turn.

Effect Monster, Rise of the Duelist