i just got my first magic deck

[Chamale]

well here are the cards i added

creatures:
neurok commando
2 descendant of soramaro
psychosis crawler
2 glitterfang
2 sokenzan spellblade
magmatic core
minamo spell keeper
magmatic core

Other
shreikhorn
oppressive will
overwhelming intellect

the only cards i removed were the 2 petrahydrox

I think that with the exception of Psychosis Crawler, none of the cards you added are worthwhile. As I mentioned, you usually want 24 lands and 36 of your best cards in a deck. A good deck is a vicious killing machine - every turn, you draw a card that makes your opponent become more and more screwed. The ones you've added will sometimes be helpful, but they're not as surely helpful as the cheap instants and sorceries that will make this deck succeed. I highly recommend you get 3 more Izzet Guildmages and some good, 2 mana or less red or blue instants or sorceries. That's the best way to make this deck succeed when you play with your friends.

 

[Macgyvercas]

my deck has roughly 86 cards

Typical newbie mistake, I'm afraid. You should identify your best 36 cards, and add 24 lands (I recommend 10 mountains, 12 islands, and 2 Izzet Boilerworks). The extra cards in your deck are reducing your chances of drawing the best ones, such as the Izzet Guildmage. Try posting your current list and I'll recommend some cuts.

Some cards you should think about using:

Niv Mizzit, The Firemind [http://magiccards.info/gp/en/123.html]
Traumatize [http://magiccards.info/query?q=traumatize&v=card&s=cname]
Seismic Spike [http://magiccards.info/query?q=Seismic+spike&v=card&s=cname]
Spitting Earth [http://magiccards.info/query?q=spitting+earth&v=card&s=cname]
Redirect [http://magiccards.info/query?q=redirect&v=card&s=cname]
Steamcore Weird [http://magiccards.info/query?q=!Steamcore Weird] (Simply because of the effect)

I respectfully disagree with most of these. Niv Mizzet is good, but too $$$$$ to be worthwhile for a player who's just starting. They go for $12-$20 each in Calgary. Traumatize isn't worth it because Chaos Order's deck doesn't have many graveyard effects. Seismic Spike is a decent spell, and a common to boot. Spitting Earth isn't as effective as Flame Slash [http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=193648] for killing creatures. Redirect is good, but probably too pricey for the effect relative to the benefit of buying more Izzet Guildmages. I think Steamcore Weird just isn't very good in a deck that mostly wants to cast instants, sorceries, or creatures with abilities that give a bonus to instants and sorceries.

Well, as I said, I'm not very good with Blue/Red decks, so I was just going off of what I had personally tried (I don't have Niv Mizzit, though) and what seemed to work for me. So I truly appriciate the corrections.

Normally, though, I run a Red/Black deck (Rakdos base), a Black deck (Demons), and a White deck (my angels).