agains ike at low %, u can Fair him after getting aethered.
if u shield his front b, land a Fsmash, that move is really lagged.
If the ike lags on edge with his aether and u have the oportunity, down tilt him.
its easy to EG ike, just Bair him, if u do the right time, you will trade hits with the aether.
also firebreath to maximise %, but at some % just bair it.
if the ike come back too much with side B, just jump on it , and take the damage, he will die.
well, the ike didn't space very good, he didn't use too many Nairs, so u shouldn't have too many trouble agains him...
agains this kind of ike(that space with Nairs, dodges and jabs, mainly), i like to use minds with klaw hopping > retreated jump firebreath, it works good 4 me.
also the Fsmash retreat range can surprise an ike with Nair.
and he will try to backthrow u to Dash attack ou regrab, if u think he'll try dash attack, DI down and shield, else, upb.
the "chaingrab"(with backthrow) is said to work until 40% more or less, but I aways upb out of it, so dunno if it really work.
srry for bad english.