I need a Ruling on:
Macro Cosmos
[TRAP]/@
You can Special Summon 1 "Helios-The Primordial Sun" from your Hand or Deck.
While this card is on the field, any card sent to the Graveyard is removed from play instead.

Rock Bombardment
[TRAP CARD]/Normal
Select 1 Rock-Type monster in your Deck and send it to the Graveyard.
Inflict 500 points of damage to your opponet's Life Points. Then shuffle your Deck.

Ok I was Dueling against a Macro Cosmos Deck and Macro Cosmos was already
Activated I Set Rock Bombardment then activate it on their turn.Since I know Macro Cosmos has to Require the Card to go to the Graveyard first before the card can be removed from play.

This card caused me lots of trouble and I hate it unless I was running a Removal Deck myself.

The question is does my card and others that send cards to the Graveyard directly from the Deck to the Graveyard go through First even though this card is active on the field?

Macrocosmos doesn't let cards go to the graveyard and sends them out of play instead. However, since Rock Bombardment doesn't say the monster it sends to the grave has to actually end up there to get the burn effect you get that anyway. So in the end the rock monster is removed from play and your opponent takes 500 burn damage.

Actually...I think...if Macro Cosmos is already face-up on the field, you could not activate Rock Bombardment in the first place. Rock Bombardment does specifically require the Rock-Type monster to be sent from the Deck to the Graveyard to do anything at all. If it cannot be sent to the Graveyard, you cannot fulfill the effect in any way...of course I could be wrong (reason why I hate such situations like this while other similar situations work out differently)

Well, I guess it depends on whether or not that part of Rock Bombardment is a cost or just part of the effect... I wish they set up some organization on cards that shows what is a cost and what is an effect.

It seems like part of the effect of the card...it'd be simpler just to put a little more ink on the card and say on the bottom (sending/discarding/etc is a cost or sending/discarding/etc is part of the effect)

Either way, it would be impossible to activate it, if a card requires to go to the grave whether it is part of the effect or a cost, if it can't go to the graveyard, the card can't be activated.

I thought as much...

Um... I don't see where it is required... however, I guess most cards don't say where the card they are doing something with ends up. I guess that means you couldn't activate Levia-Dragon's effect while Macro Cosmos is out either...

Yes, that's right. If "Umi" would end up not going to the Graveyard because of an effect like Macro Cosmos, you could not activate Levia-Dragon at all since "Umi" would be removed from play and not be "sent to the Graveyard" as required by Levia-Dragon's cost.

I don't think Rock Bombardment's cost is sending the monster. As of late, they've been including the clause "to activate this card."

If it IS the cost, you are right, you cannot activate it at all. If it isn't, though, then it's fine. Effects just resolve as much as they can -- if you can't send the card to the Graveyard, that's fine, just remove it from play.

Of course, my understanding is based off the card's actual text, and we all know that isn't always accurate.

I don't believe it is a cost, however you don't always just "resolve as much as you can". I believe this is one of those cases since a card specifically requires to go to the Graveyard which, because of Macro Cosmos, cannot be done.

How can you expect something that can't even begin to resolve, resolve as much as possible.

"Resolving as much as possible" REFERS to an effect that has fullfield ALL its requirements and in between resolution something interrupted it to fully resolve and it will resolve as much as possible.

THIS IS NOT THE CASE, this REQUIRES to send a card to the grave, which is impossible, therefore impossible to even ATTEMPT to activate.

Yep..an example being Book of Life...in order to even activate it, there must be proper monsters to Special Summon and remove. If there isn't already 1 of either, then it can't even activate. If there is already 1 of each, but 1 of them is removed after the activation, then it only resolves as much as it can.

We know that Kuriboh and Thunder Dragon still get their effects if Bannisher Of The Light is face up on the field.....but their text says, "Discard this card from your hand...(add effect in here)"

This is a topic of card text not always being accurate. It's a reasonable question for the judge's list as there are cards that do and cards that do not get their effect in sim. situations. I've yet to see (but would love to see) a template for which cards do and do not get their effects in these situations.

Yeah...but usually if cards say they end up in a certain destination ("Send <card> from your hand (or field) to the Graveyard" "Remove x number of monsters from your Graveyard from play." and such), then if they're unable to reach that destination, it's impossible to even activate such an effect. (Kycoo preventing the opponent from activating Book of Life, since they can't remove from play, for example)