You cannot use Eccentric Boy as a Tuner to Summon this monster because the other material monster must be 1 monster in your hand, and this requires 2 non-Tuner monsters.
Your opponent only needs to have a face-up LIGHT monster when you activate this effect, not when it resolves.
Destroying 1 Set card targets that card.
Sending cards from your hand to the Graveyard for second or third effects is a cost.
The text, " If your opponent controls a face-up LIGHT monster, you can select and activate 1 of the following effects once per turn:" of " Ally of Justice Decisive Armor" is not treated as an effect.
If one of the monsters sent to the Graveyard by the effect of your " Ally of Justice Decisive Armor" was sent to your Graveyard because it was owned by you and added to your opponent's hand by " Exchange", then the sent monster will be included in the damage inflicted.
1.0 1.1 1.2 1.3 1.4
Konami Gameplay FAQ: Hidden Arsenal 3 -- Card Rulings (version 1.0) ↑
2.0 2.1 2.2
Konami FAQ: Synchro Monster > Ally of Justice Decisive Armor
Konami FAQ: If the effect of "Ally of Justice Decisive Armor" send a LIGHT monster from the opponent's hand to your Graveyard, then will damage be inflicted?
Konami FAQ: If there are no longer any LIGHT monsters on your opponent's field when resolving the effect of "Ally of Justice Decisive Armor", then is the effect applied? ↑
Konami FAQ: Can "Mist Wurm" be Synchro Summoned by using "Eccentric Boy"?
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.