Ehren, Lightsworn Monk [CT08-EN016] Super Rare BT9-021 If Summoning an "Invoked" Fusion

If Summoning an "Invoked" Fusion Monster this way

You can only use the effect of "Archfiend Heiress" once per turn

Add the remaining card to your hand

and destroy all those monsters with 1500 or less DEF

Ehren, Lightsworn Monk [CT08-EN016] Super Rare BT9-021 If Summoning an "Invoked" FusionSet: 2011 Collectors Tins Card type: Effect Monster Rarity: Super Rare Attack: 1600 Defense: 1000 Before damage calculation, when this card attacks a Defense Position monster: Shuffle that monster into the Deck. During each of your End Phases, send the top 3 cards of your Deck to the Graveyard. You must control this face up card to activate and to resolve this effect.