You shouldn't really need more tricks in your repertoire - mainly because Ike doesn't really have them. We've said before Ike relies heavily on fundamentals, and that includes making sure you don't get predictable. Don't always approach the same way, don't always try to evade the same way. For example, I often catch myself trying to jump in on my opponent too much, which sometimes gets me punished. If my opponent's started to get wise to that, then I may stay to the ground more, watching to see if they're throwing out whiffs in the air expecting me to jump, and if so I try to get a feel for when it's still safe to jump in so that they don't subsequently adapt to my ground approaches. Or, if they're sitting in shield against my aerial approaches, I pull out tomahawk grabs. But then they start to get wise to that, so maybe I just land and throw out a jab or tilt to thwart the OoS option I'm predicting. In this scenario, a raw tilt on a shield sounds like a stupid idea on paper, but it's exactly because they're been trying to pick up on my habits that they drop shield and get a free trip to the moon courtesy of Utilt.
It's not about the number of tricks you have, but the way you use them.
(Of course, some characters have a lot more tricks than others so they're high tier)