Eidos the Underworld Squire [SR01-EN002] Super Rare World Championship JPP Cards It does not have to

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

except "Doomking Balerdroch"

You can only use this effect of "Dark Contract with the Witch" once per turn

Set: Legendary Duelists: Ancient Millennium Card type: Effect Monster Rarity: Rare Attack: 1600 Defense: 500 You can discard 1 card

Eidos the Underworld Squire [SR01-EN002] Super Rare World Championship JPP Cards It does not have toSet: Structure Deck: Emperor of Darkness Card type: Effect Monster Rarity: Super Rare Attack: 800 Defense: 1000 If this card is Normal or Special Summoned: During your Main Phase this turn, you can Tribute Summon 1 monster, in addition to your Normal Summon Set. (You can only gain this effect once per turn.) You can banish this card from your Graveyard, then target 1 monster with 800 ATK and 1000 DEF in your Graveyard, except "Eidos the Underworld