Spawn, if he's not the "God" Spawn, is useless here except the fact that he can heal others IIRC
Prime solos anyways...
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I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not
Prime is good enough on his own. He was too much for two other Superman to handle, and has no weakness to magic.
Thor could teleport him away for the win, but he's likely too much to handle physically for that to happen quickly enough.
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"I'm not smart so much as I am not dumb." - Harlan Ellison