Ancient Gear Ballista [DUOV-EN010] Ultra Rare ST9-15 treat this card and the

treat this card and the other Synchro Material Monsters as that Monster Type for that Synchro Summon

You cannot declare attacks the turn you activate this effect

this card cannot be destroyed by Spell/Trap effects

you must Tribute this card

Ancient Gear Ballista [DUOV-EN010] Ultra Rare ST9-15 treat this card and theSet: Duel Overload Card type: Link Effect Monster Rarity: Ultra Rare Attack: 1500 2 EARTH Machine monsters If this card is Link Summoned: You can add 1 "Ancient Gear" monster or 1 "Geartown" from your Deck to your hand. You can target 1 Spell Trap you control and 1 face up monster your opponent controls; destroy that card you control, and if you do, change that opponent's monster's ATK DEF to 0 until the end of this turn. You can only use each effect