Sinister Serpent [SDD-002] Secret Rare Gemini/Effect Monster or leaves the field because

or leaves the field because of an opponent's card effect while its owner controls it: You can target 2 "Krawler" monsters with different names in your GY

You can only use this effect of "Mirror Resonator" once per turn

Set: Dark Beginning 1 Card type: Equip Spell Rarity: Common Increase the DEF of a monster equipped with this card by 800 points

Set: Dark Crisis Card type: Effect Monster Rarity: Super Rare Attack: 2000 Defense: 1500 You cannot Normal Summon or Flip Summon this card unless you have an Archfiend Monster Card on your side of the field

Set: Dark Revelation Volume 1 Card type: Continuous Spell Rarity: Common Each time damage

Sinister Serpent [SDD-002] Secret Rare Gemini/Effect Monster or leaves the field becauseSet: Stairway to the Destined Duel Card type: Effect Monster Rarity: Secret Rare Attack: 300 Defense: 250 During your Standby Phase, if a "Sinister Serpent" is in your Graveyard, you can return the "Sinister Serpernt" to your hand.