What advise novice player in Omaha?
1) Never forget: this is a four card game. It isn't Hold 'Em with a couple of extra cards. If you have something like: ( A, A, nothing, nothing ) you have a
very marginal hand that should be played from the button (or as a freebie in the big blind) and then only if you can get in for the price of one BB.
Two separate Hold 'Em hands don't cut it either ( A, A, 7, 6 - off ) may look attractive, but it's not. You need all four cards co-ordinated to make an Omaha hand ( 7, 6, 5, 4 ) is a better hand than ( A, A, 7, 6 ) for this reason. How does an A, 7 or an A, 6 work together? They don't unless you're double suited for two potential nut flushes.
The exception would be very short handed games. If it's just you and two or three other guys, you can ram a pair of aces through just those two or three remaining players a lot easier than get them by a full table.
2)
equity edges run a lot closer at Omaha. In Hold 'Em, if you have pocket aces, you have a monster of a hand. The ideal hand in Omaha would be something like ( A, A, K, K - double suited ). That's a helluva starting hand, but not the through ticket pocket rockets are in Hold 'Em. You'd certainly open with a raise, definitely 3-bet it, or even 4-bet, but you're not necessarily looking to get it all in, especially when stacks are deep. Your ability to run players off pre is a good deal more limited in Omaha. You can start with an ideal hand, or near ideal, and still miss the flop.
3) Don't misread the board. If you have: ( A, 2, 3, 4 ) and the board comes: ( 2, 2, J, J ) you don't have a Full. You have ( 2, 2, 2, A, J ) any jack beats you.
4) Frustration Factor: In this game, it runs high. Yes, you can have ( AcKc AdKd ) and see a flop like: ( 9h 8h 5s ) giving you no flush draws, no straight draws, nothing. Doesn't matter that you 3-bet pre. If you get action on that flop, SUX to be you. You're beat and you just have to let it go. If you're not beat on the flop, you likely will be by the river. Lone over pairs seldom win in this game, unless it's very short handed. Also, don't fall for the temptation to go all fishy just because you saw several big pots exchange hands when the players were holding garbage. In Omaha, just like every other form of Poker, otters win and fish get eaten. Stay an otter.
5) Beware the two pair: Flopping bottom two in Hold 'Em is a pretty good result. At Omaha, it's deadly. Top two, or even bottom and middle sets, are nothing to get excited about. If you get a hand like that, you want to take it down
now. With four cards, straight draws are almost always out.
6) Never underestimate the value of redraws and backdoor draws, even if they're sub-nut draws. Having ( 9, 8, x, y ) and flopping: ( T, 7, 6 ) gives you the nuts. However, it's so much better if your side cards are Broadways, rather than small cards. Broadway cards give you a back door to a higher straight. It would also be better if your side cards were suited, and matched a suit on board, giving you a back door to a flush, even if it's not the nuts. If the Broadways come on the turn and river, back dooring a flush just might win it for you if someone completed a higher gut straight.
In Omaha, that's an ideal flop: nuts now with a redraw to higher nutted hands. These really are your balls out through tickets. Do whatever it takes to get in as much in on the flop as you can. If you flop nuts, but don't have any redraws, play it more cautiously.