[ Machine / Effect ]Cannot be Normal Summoned/Set.
Must be Special Summoned by a card effect.
(Quick Effect): You can target 1 Machine monster you control; destroy that Machine monster and all monsters your opponent controls with ATK less than or equal to it.
If a face-up EARTH Machine monster(s) you control, except "Machina Citadel", is destroyed by battle or card effect while this card is in your GY: You can Special Summon this card.
You can only use each effect of "Machina Citadel" once per turn.
ATK/ 3000
DEF/ 2500
EARTH
10
