Cannot be Normal Summoned, unless you control a "Ghostrick" monster. Once per turn: You can change this card to face-down Defense Position. Once per turn, during your Main Phase 1: You can target 1 "Ghostrick" monster you control; its ATK becomes equal to the combined original ATK of all "Ghostrick" monsters currently on the field, until the end of your opponent's next turn, but if it does, only that monster can attack this turn.
Since “Ghostrick” monsters are relatively weak in terms of ATK and DEF, they would require a substantial amount of support to keep them alive on the field. Mirror wall is not really helpful here since the current meta usually involves high ATK monsters that can hit through your Mirror Wall if you are playing “Ghostrick” themed monsters.
Changes Battle Positions / Flips itself face-down
Cannot Normal Summon
Changes ATK value
Prevents your monsters from attacking
18-4 usually over power my opps beat sticks and other times get real lucky hitting 2 walls they lose LP from attacking with 0 AtK monsters