Attribute Booster

Attribute Booster is a series of Level 1 and 2 monsters that debuted in Metal Raiders and their Link 2 Link Monster counterparts.

Design
The Main Deck monsters share the effect "As long as this card remains face-up on the field, increase the ATK of all [same Attribute as its own] monsters by 500 points and decrease the ATK of all [opposite Attribute] monsters by 400 points.".

The Link Monsters needs 2 monsters of the same Attribute to be Link Summoned and share the effect "All [same Attribute as its own] monsters on the field gain 500 ATK and DEF. All [opposite Attribute] monsters on the field lose 400 ATK and DEF. If this card is destroyed by battle or card effect: You can target 1 [same Attribute as its own] monster in your GY; add it to your hand. You can only use this effect of [this card's name] once per turn."