Red Dragon Archfiend (SDCK-EN045) [Structure Deck: The Crimson King]

1 Tuner + 1+ non-Tuner monsters
<br>After damage calculation, if this card attacks a Defense Position monster your opponent controls: Destroy all Defense Position monsters your opponent controls. During your End Phase: Destroy all other monsters you control that did not declare an attack this turn. This card must be face-up on the field to activate and to resolve this effect.