DI'ing Right
Now not much has to be said, but it's very important to mention it in it's own subsection as this is a very important mechanic which makes you different from 08 Ike's.
It's a common misconception on how easy it is to gimp Ike, brush off that and I'll tell you the key to surviving. The key is to DI IN THE RIGHT DIRECTION
Now then, as Mr. Doom has said about sucking with SDI, DI is all about anticipation about getting hit. As basic as I can say it, you always want to DI to the corner. DIing to the corner grants the most survivability due to how blastzones are shaped like a square. Don't let the hexagon death explosions fool you, the world is SQUARED. Therefore, DIing towards a corner usually means you survive..... however please don't DI to a bottom corner... That being said, when you anticipate being hit horizontally, DI up. This is VITAL to surviving and not falling into Ike's dead zone. Ike's recovery is limited in direction.. you can either go UP or SIDEWAYS. However 99.4% of the time, if you can recovery with quickdraw, you can recovery with aether, so you will usually recovery with aether as quickdraw is a terrible recovery.
DIing right is very important for surviving bring hit out of aether. Basic things like Marth/Ike's counter and Peach's toad are very basic examples of attacks that will hit you out of aether. Of course you learn from experience how to space from those attacks but you'll find yourself getting hit by attacks such as those on.. so best to anticipate and DI towards the stage and upwards as much as you can.
this is also important for when you are being hit by attacks in general offstage. Back in the Scrubby days, no one DI'ed and everyone was like "omg Wall of Pain gimps Ike soo easy, he's trash" and we Ike mains have been stuck ever since with a bad rep of a character as people judged Ike too harshly. The following sections will show you how to recover as Ike as Ike can make it back usually now. Of course you will find yourself getting gimped a lot in the beginning but the best way to learn is by first hand experience how to recover. .