Heavy Mech Support Platform [LCKC-EN022] Ultra Rare Mai attach this card to it

attach this card to it as material

Thunderbird

Special Summon that monster

Set: Dark Beginning 1 Card type: Effect Monster Rarity: Common Attack: 300 Defense: 350 When the control of this face-up card on the field shifts to your opponent

Heavy Mech Support Platform [LCKC-EN022] Ultra Rare Mai attach this card to itSet: Legendary Collection Kaiba Card type: Union Effect Monster Rarity: Ultra Rare Attack: 500 Defense: 500 Once per turn, you can either: Target 1 Machine Type monster you control; equip this card to that target, OR: Unequip this card and Special Summon it. A monster equipped with this card gains 500 ATK and DEF, also if the equipped monster would be destroyed by battle or card effect, destroy this card instead.