yeah, it's essentially impossible for someone of thanos's level to harm him. WITHOUT the serpent upgarde, even the godblast did no more than halt/pause his advance. it didn't actually do any harm to him. thanos energy output>godblast? i don't think so. even if you DO think so, you would have to believe it was SIGNIFICANTLY higher and that, imo, is pretty laughable. without gimmicks, someone of thanos's level cannot win this fight. could kurrth accumulate enough damage to take thanos out? that's the only reason question. i think he could, but it would take a while. which is fine since kurrth could literally fight forever.