Something from the archives.

[bury the year]

Pardon me if the OCG's a bit off. Not too familiar with the new stuff.

[b]Great Sphinx Khufu[/b]
Rock-Type/Synchro/Level 6/ATK 0/DEF ?
1 EARTH Tuner + 1 or more non-Tuner monsters
This card's original DEF is equal to half the combined original DEF of the monsters used to Synchro Summon it. Your opponent cannot attack any face-down monsters you control. When you Flip Summon a monster: you can switch both this card's and the Flip Summoned monster's original ATK and DEF until the End Phase.

[b]Cowardly Strategy[/b]
Continuous Spell
Whenever a monster you control successfully attacks: you can flip it into face-down Defense Position after the Damage Step.

[b]Lodestone Mine[/b]
Normal Trap
When this face-down card is destroyed: you can add 1 Rock-type monster from your Deck to your hand.