Swallowtail Butterspy | Decks and Tips

This page notes details of Swallowtail Butterspy (DARK/Warrior/Effect Monster) : decks, tips, effect and rulings. Learn and enjoy playing Yu-Gi-Oh! Duel Links!
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update 02/07/2017

Swallowtail Butterspy

Swallowtail Butterspy
Monster TypeWarrior
Card typeEffect
Card Effect TypeTrigger Effect


When another monster you control inflicts battle damage to your opponent: Target 1 face-up monster your opponent controls; it loses ATK equal to the battle damage inflicted.

How to Get

PackEmpire of Scarlet [R]
Level-up reward--
Victory against--
Card trader--




  • Able to make 1 of your opponent’s face-up monster lose ATK equivalent to the battle damage inflicted by another one of your monster.
  • Good ATK stats


  • Dependant on your other monster to inflict battle damage to your opponent, in order to trigger its effect.
  • Weak DEF stats.


  • You can use Moonlit Papillon to Special Summon this monster from your Deck to the Field.
  • Due to the immense effects of monster removal tech cards such as Treacherous Trap Hole and Widespread Ruin, which are widely used in the current meta, attack reduction strategies are becoming less effective.


Combine Swallowtail Butterspy with these monsters that can attack your opponent directly, to be able to reduce the attack of your opponent’s face-up monster.


Use this card to greatly reduce all your opponent’s monster’s ATK when your opponent declares attack.




Stat changesYour opponent's monsters lose ATK


why is this a warrior?????
this card as an insect would be very interesting!
<< Anonymous
Anonymous Reply
Because Konami's logic!
Photon Lizard= dragon
Dragon Zombie=zombie
Thunder Dragon= Thunder
Berserk Dragon= zombie

use in stall decks. rod of minds eye + direct attack + this

Commens and feedback


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Comments (updated every hour)

It's even worse - it's 500 ATK after the ENTIRE chain link 2 or higher resolve. It&#...
Probably most people already knew at this point, but if you use Sera against Aigami, they'll...
Very sure that anon was being sarcastic.
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