Ancient Gear Factory [DR04-EN159] Common Ancient Guardians It does not have to

It does not have to activate its effect during the End Phase to shuffle itself into the Extra Deck

except Tribute Summoned monsters

Set: Labyrinth of Nightmare Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 1200 This card can only be Special Summoned by removing 1 WATER monster in your Graveyard from play

Once per turn: You can banish 1 Plant monster from your Graveyard

Ancient Gear Factory [DR04-EN159] Common Ancient Guardians It does not have toSet: Dark Revelation Volume 4 Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Select 1 "Ancient Gear" monster in your hand and show it to your opponent. Remove from play "Ancient Gear" cards in your Graveyard whose total Levels are equal to double the selected card's. You can Normal Summon the selected card without Tributes this turn.