In yu-gi-oh trading cards, is the effect of "Demise, King of Armageddon" once per turn or only once?

I keep on debating on what is really the effect. And the Kaiser Coliseum as well. If there are no monsters on your side of the field, does that mean that the card is destroyed or nothing can be summoned unless you do . . . I'm confused.

In yu-gi-oh trading cards, is the effect of "Demise, King of Armageddon" once per turn or only once?
Demise, King of Armageddon's effect is what's called an ignition effect. Generally, monsters with Ignition Effects have to be sacrificed to activate the effect(i.e. Exiled Force, Red-Eyes B. Chick) but in Demise's case it stays in play so you can just pay 2000 LP, during your main phase only, and destroy all the other monsters on the field. As for Kaiser Colosseum, if you have no monster then your opponent can summon any number of monsters until you summon a monster. After that they can't summon(tribute summons are allowed as long as they still have fewer monsters than you) any more but the excess monsters they have in play aren't destroyed.





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Reply:demis is cost effect, which can b activated constantly, one per turn only in main phase.





no, if u have no monstersm opponent can summon.





u need at least one monster for kaiser to work.





it doesnt gt destryed by itself, some thing needs to destroy it.
Reply:it's as many times as you can once per turn with out runing out of life points
Reply:Only Once. It would have said, once per turn. Kiser Coliseum, can only be activated when you have a monster on your side of the field.
Reply:Kaiser Colluseum is if your opponent has no monster on his or her side of the field you can have as many monsters as you want. Demise, King of Armageddon should say how many times you can use its effect ans if it doent then you can only use it once.

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