Id like to know if i can use my body as a shield to negate cards that destroythe whole field like Levia-Dragon Daedalus?

As long as there is 1 monster on your side of the field that can be destroyed via Daedalus's effect, then yes, you may activate My Body As A Shield.

any effect that would destroy a monster, can be stopped by my body as a shield. That is why I love that card. I believe it is a hidden gem. I hear alot of "pay 1500 lps!, no way jose!", but I don't think its that big of a cost considering the positive it gives you. Just think about it. The most monster destruction people run nowadays, is like three maybe. if I run three mbaas, I can keep my monsters alive long enough to gain an advantage.

That's not quite entirely correct (but EXTREMELY close).

My body as a shield can only be used against affects that destroy a monster(s) if it will actually destroy a monster.

The main difference is with "trap monsters" like embodiment of apophis. In the case of these "trap monsters" things like heavy storm would destroy a monster, but you CANNOT use my body as a sheild, because heavy storm isn't a card that (normally) destroys monsters. I don't think you could use it to protect a monster that is treated as an equip spell for similar reasons (plus it's not a monster at the moment).

You also can't use it against effects that are uncertain, like barrel dragon. Or against things in the damage step. And it can't be used against continuous effects (not continuous cards, continuous effects). And it can only be used against effects that will destroy a monster when they resolve (not later).

Basically there are a number of effects that can destroy a monster that MBaaS can't stop. They're not very common, but still exist.

Almost had it there phiefer, there is a huge exception there, Time Wizard.

So in addition to what you said, you cannot use MaaS against cards that don't destroy a monster immediately.

I didn't miss that. I covered that in the 2nd to last paragraph. I started out saying about uncertainties (such as time wizard) and at the end of it I said it can only be used against cards that destroy a monster when they resolve (the immediately part).

My comment about cards that will actually destroy a monster was referring to mass destruction cards, such as final destiny, that you can't use MBaaS against them if there are no monsters (or the only monsters are immune to spells, high kay'est)

Also, Time Wizard isn't a huge exception. he falls into the same category as barrel dragon, earthshaker, and acid trap hole that aren't guaranteed to destroy a monster.

I would disagree, since Time Wizard guarantees it will destroy a monster(s). Whichever side the coin ends up it will destroy a monster(s) on either side of the field.

• You cannot use "My Body as a Shield" against cards whose effects might or might not destroy a monster right away, such as "Earthshaker", "Barrel Dragon", "Acid Trap Hole", or "Time Wizard".

This ruling clearly shows that time wizard is in the same group that I mentioned before (in fact that is where I got the examples).

Also, are you sure that Time Wizard guarantees destruction? Does your opponent have to have monsters on the field for you to use it? I don't see any ruling saying so. Nor is there a required part of it's effect that involves the opponent's monsters.

According to rulings, blind destruction is mandatory, and therefore you would have to roll the die even if there were no monsters on the field. This is possible because it is not known what will be done until after the roll.

Time wizard is similar, you do not know what time wizard will do until you flip the coin. Therefore you don't need to worry about the "must be able to resolve" rule.

It's effect is indeterminant, meaning it doesn't guarantee anything.

I bolded the important part of the ruling, Barrel Dragon, ATH, Blowback, etc. are the monsters that might not destroy anything (they fit into this group because regardless of if they do or don't destroy a monster they don't do it right away.

Time Wizard destroys a monster regardless.

I still disagree, I believe you could activate time wizards effect when your opponent has no monsters, and therefore it may not destroy any monsters. There is no guarantee. The destruction is based on a coin toss, and is therefore indeterminate.

There is no ruling saying you can only activate it when your opponent has at least one monster on the field.

Exactly, therefore if your opponent has no monsters you can still use it, and if you call the coin toss correctly no monsters will be destroyed.

I'm not sure what I was thinking at the time I wrote the last reply, probably daydreaming lol.

Anyways, I ment to say there is no ruling saying you can activate if your opponent has no monsters.

Hm...I would expect that you would have to try to fulfill both parts of the effect at activation - meaning, both you and your opponent must have a monster in order to activate Time Wizard, just like other cards like Raigeki or Dark Hole.

You might want to take this up with Dan Scheidegger - it does seem rather inconsistent.

But apart from that, yes it does work against daedalus :p

And Darkmagiciandog, I think it depends. If you run small monsters, chances are they'll get attacked. No point running MBAAS when a simple saku works better. MBAAS only pays for itself if you are running large monsters that require protection, like Destiny Hero - Dogma.

I also like it in Lily decks, mostly because you can afford it.