A surprise attack by Nova (arguably the weakest of all the Heralds) caused WOL Morg to cry out in pain and collapse onto the floor. Thanos' got this 10/10.
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
A sneak attack is the key word. Nova was still very powerful, and I always saw Firelord as being the weakest, after all she did far better in that battle than Kril did if you recall. Morg literally punked Firelord. Do you really believe that a sneak attack is any cause to believe that this would be easy?
I think that it is important for the sake of this thread, that we don't compare one characters power-sets to another. Let me explain. Morg took on a team of Heralds that was more powerful than Nova, and the Surfer that Lord Mar-Vell embarrassed. However if we placed that scene under a microscope, Mar-Vell hit them with magic, and not on a physical level. Some characters like the Surfer, and Nova could have been weak to that particular magic. Mar-Vell really didn't do anything for me to say that he was physically more dominant than them though.
My argument is this, Morg was more of a physical powerhouse than Mar-Vell was shown to be on panel, which leaves this open to debate. Morg also has an axe and the power that was capable of cleaving a world in two like a knife though butter, and that was when he just possessed the Power Cosmic. Using just the Power of the Waters of Life, he shrugged, and destroyed the world that the Waters of Life originated from.
You lowballer you. Using a character's lowest showings as the standard is a no no.
Also,
If a child surprised attacked you and kicked you in the shin then you would cry out in pain too, yet you are much more powerful than a child (unless you are a child yourself lol)
I recall it, but what was the context of Morg's battle with Thanos when he did not have the PC and just retained the WOL? There was also a few inconsistencies in Morg's entire run that should have been explained in greater depth. How Marvel went and destroyed a good character like Morg is beyond me. Instead of making him brilliant they gave him an uninspiring origin, and put him out to pasture.
The only time I can recall Thanos and Morg fighting was in the Cosmic Powers issues. Thanos fought a mind controlled Morg. He had his Power Cosmic back but no WoL stuff. This was after he was killed and resurrected by Galactus following the events in the Herald Ordeal Arc.
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
In that little scuffle, if you remember, Thanos did not maul Morg, and according to continuity, I don't believe that Morg was in possession of the Power Cosmic. Galactus never replenished him with it after taking it away once he had killed Nova. Do you remember this? let me be clear, I think Thanos would win, but he would be in for one hell of a battle. The scene in Cosmic Powers tells us this much.