Erik-Lensherr
"The devil made me do it"
The Spectre did manage to stall him but all the heroes were needed as well to stop him. It wasnt just the Spectre but Luthor,Darkseid,Superman,etc. were needed. The Spectre was comatose after his conflict with the Am. So again the Am was to big of a threat for the Spectre and the Spectre alone to defeat.
The Spectre stopped him from making only the anti-matter Universe exist when they fought, which was his goal. What happened afterwards is irrelevant.
A note to take is that even after his battle and his apparent state of being comatose he still had infinite energies which Phantom Stranger tried to summon, but the Spectre reisted and denied them the power.
Captain Marvel wasnt backed by the entire dcu magical realm but by the remaining dcu magical realm
No sh*t ? You just typed that to fill up space or something ? 😂
which was still very powerful it wasnt near ig level. The Spectre was an idiot due to the fact he was hostless. He wouldnt have escaped if it wasnt for Eclipso who carried him away after Enchantress cut off the power supply.
We don't know the level Captain Marvel was at in that fight, so assumptions are useless here and don't add anything to the discussion.
Besides, the fight with Captain Marvel should be regarded as PIS anyway since Spectre, like I said, fought like an idiot. He showed later in the story that he can transform Captain Marvel back in Billy. Not to mention he was also shown as beign unstoppable in his fight with Shazam, when he proved he can't really be killed since he can just absorb Shazam's power, which he could have/should have also done against Captain Marvel.
Please feel free to point me out some of the Spectres impressive feats that you feel the ig would fail to produce.
Please point me some of IG's feats that you feel the Spectre would be unable to produce.