Target 1 "Galaxy-Eyes" or "Cipher" Xyz Monster you control; attach this card to it as an Xyz Material, and if you do, the next time it would be destroyed by battle or card effect this turn, it is not destroyed.
During damage calculation, if your "Cipher" monster battles, while another monster with its same name is on the field: You can double the ATK of your battling "Cipher" monster until the end of the Battle Phase. You can only use this effect of "Cipher Interference" once per turn.
If a "Cipher" Xyz Monster(s) you control that has Xyz Material is destroyed by battle or an opponent's card effect and sent to your Graveyard: Target 1 of those monsters; Special Summon it, and if you do, Special Summon 1 Xyz Monster from your Extra Deck with the same name as that Xyz monster.
If your opponent controls a monster with the highest ATK on the field (even if tied): Target 1 "Galaxy-Eyes" or "Cipher" Xyz Monster you control that has Xyz Material; detach all Xyz Materials from that Xyz Monster, and if you do, Special Summon 1 monster from your Extra Deck with the same name as that Xyz Monster.
During either player's Main Phase: Target 1 "Cipher" Xyz Monster you control; Special Summon from your Extra Deck, 1 "Cipher" Xyz Monster that is 1 Rank higher than that target, by using that target as the Xyz Material. (This Special Summon is treated as an Xyz Summon. Xyz Materials attached to that target also become Xyz Materials on the Summoned monster.) It gains this effect.
● This card gains 500 ATK for each Level 4 or higher monster you control.