Overlay Booster
Warrior / Effect
LIGHT / 
5If you control a monster with 2000 or more ATK, you can Special Summon this card (from your hand) in face-up Defense Position. You can only Special Summon "Overlay Booster" once per turn this way. During your turn, except the turn this card was sent to the Graveyard: You can banish this card from your Graveyard, then target 1 face-up Xyz Monster you control that has Xyz Material; it gains 500 ATK for each Xyz Material attached to it.
2000/
CARD ID: 75214390
STATUS TCG: Unlimited
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| TCG Set | Symbol | Rarity | Low | Avg | Trend | |
|---|---|---|---|---|---|---|
| Legacy of the Valiant | LVAL-EN006 | Common | -,--€ | -,--€ | -,--€ |
This card is related to Overlay Sentinel:
Both monsters' first effects have an effect that changes them to Defense Position when Summoned a certain way (this card can be Special Summoned in Defense Position, and Sentinel changes to the said battle position when Normal Summoned).
This card's second effect to increase the ATK of one of your Xyz Monsters is the opposite of the second effect of Overlay Sentinel.
Both monsters are LIGHT Warrior-Types with 2000 ATK and 0 DEF.
Both cards are used by Kite Tenjo in the anime and also made their debut in the same Duel.
Both monsters' first effects have an effect that changes them to Defense Position when Summoned a certain way (this card can be Special Summoned in Defense Position, and Sentinel changes to the said battle position when Normal Summoned).
This card's second effect to increase the ATK of one of your Xyz Monsters is the opposite of the second effect of Overlay Sentinel.
Both monsters are LIGHT Warrior-Types with 2000 ATK and 0 DEF.
Both cards are used by Kite Tenjo in the anime and also made their debut in the same Duel.
OCG Rulings
This is a Normal Summon Monster.: Overlay Booster
Special Summoning this card from the hand does not start a Chain Link.
The "it gains 500 ATK for each Xyz Material attached to it." effect is an Ignition Effect that activates in the Graveyard. (This effect targets 1 face-up Xyz Monster you control.)
Banishing this card from the Graveyard is a cost to activate the "it gains 500 ATK for each Xyz Material attached to it." effect.
The ATK gained by this effect remains increased as long as that monster remains face-up.