Formula Synchron [RA04-EN143] Quarter Century Secret Rare BW64 you can equip this card

you can equip this card to a monster OR unequip it to Special Summon this card in face-up Attack Position

its ATK is doubled during the Damage Step only

Set: Promo Finish: Rainbow Foil Type: Action Subtype: Aura Rarity: Promo Class: Generic Cost: 0 Go again At the beginning of your action phase

• Effect Monster: Select 1 monster in your Graveyard and Special Summon it

Gains 300 ATK for each monster in your GY

Formula Synchron [RA04-EN143] Quarter Century Secret Rare BW64 you can equip this cardSet: Quarter Century Stampede Card type: Synchro Tuner Effect Monster Rarity: Quarter Century Secret Rare 1 Tuner + 1 non Tuner monsterWhen this card is Synchro Summoned: You can draw 1 card. Once per Chain, during your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon using this card you control.