Forum:Just some questions

im posting some questions i have to ask to better understand what you can and can't get away with. ok lets start with some questions on some things that have happenend that i've come across.

1st: let's say you want to use a card u want to use, but your thinking to your self, i can i use it if i can't do something in it's effect? well that's my question. normaly no, but sometime thats not the case for SOME reason. for example: can you use stardust effect if you 1. can't destroy the card useing the effect, (ex: it's already in the grave) and 2. if it's not on the field. the reason why i ask is that so far there is no card that destroys anything not on the field and youu cant destroy something already dead. if u can't use all of the effect, you can't use the effect at all. that's my understanding of any and all cards. for example, i have to use absolute zero's effect, which ONLY activates when he's no longer on the field. you try to use stardust, but wait! Absolute's no longer there. this means he's already off the field, and you can't destroy something not on the field. or can you? and also you can't destroy something already in the grave so you cant use stardust because you can't ignore the destroy effect he has. or can you? would'nt make any sence if you could.

2nd: if you had ally of justice catastor, and i attacked it, i know my monster dies before damage, but shouldn't your ally die as well? there's just no battle damage done, like a waboku, but it doesn't stop him from being sent to the grave does it? if it doesn't it's a very broken card.

thats it for now, ill post more questions as i play on.