Machina Metalcruncher [ETCO-EN098] Ultra Rare BW61 destroy this card unless you

destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your Hand to the Graveyard or reveal 1 Insect-Type Monster in your hand

destroy all face-up "Crystal Beast" cards you control

Set: Diamond & Pearl: Trainer Kit - Manaphy Type: Water Rarity: Promo Retreat cost: Colorless

When this card is activated: Destroy all Special Summoned monsters you control

Set: The Duelist Genesis Card type: Tuner Monster Rarity: Common Attack: 1400 Defense: 800 When a Psychic-Type monster you control battles

Machina Metalcruncher [ETCO-EN098] Ultra Rare BW61 destroy this card unless youSet: Eternity Code Card type: Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 0 If you control no face up cards, you can Normal Summon this card without Tributing, but its original ATK becomes 1800. If this card is Normal or Special Summoned: You can reveal 3 EARTH Machine monsters from your Deck, then your opponent randomly adds 1 of them to your hand, and you shuffle the rest back into your Deck. You can only use this effect of "Machina