Deskbot 006
[ Pendulum Effect ] 
You cannot Pendulum Summon monsters, except "Deskbot" monsters. This effect cannot be negated.
[ Monster Effect ] 
If this card is Normal or Special Summoned: You can target 1 monster on the field; change its battle position. This card gain 500 ATK for each face-up "Deskbot" monster in your Extra Deck. If this card in the Pendulum Zone is destroyed: You can target 1 "Deskbot" card in your Graveyard; add that target to your hand. You can only use this effect of "Deskbot 006" once per turn.