Tengu format ruling
Red Dragon Archfiend
Card effect (current official text)1 Tuner + 1 or more non-Tuner monsters
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.
Rulings
- The ① effect activates before Flips, or effects like "D.D. Warrior" or Giant Rat" can activate. (A Flip Effect monster's effect will activate on a new chain after it is destroyed. The others listed here don’t.)
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.