How powerful are featless abstracts?

Depends on power scaling.Without feats we don't know what the character would do in combat situations and thus why it's hard to engage featless characters in debates.

@highaccuser: I look at it this way. Authority is everything when it comes to abstracts ( for the most part). If the abstract is the personification of a concept greater than other elements or ideas than he has more power. for example lord chaos and master order have absolute control over there domains and as well as anything connected to it. they can change whatever they want in there specific dimensions and lower ones as well. However, eternity/Infinity, which is the personification of life and space/time would have control over order and chaos. He IS the universe, so he would have absolute control over anything that is a part of him. this is only nullified when an abstract(s) of equal importance or raw ideas are present. In the case of marvel comics, death and oblivion are at similar levels of power. thus they can challenge eternity/infinity's power. TOAA gave the living tribunal jurisdiction over all of the multiverse, and thus, there is no number of abstracts or beings that can challenge the LT under any circumstances because it isn't there place to beat him.

So we can assume that LT is stronger than the sum of the MU and Eternity can only be challenged by any beings lower than him, so on and so forth.

@highaccuser: I look at it this way. Authority is everything when it comes to abstracts ( for the most part). If the abstract is the personification of a concept greater than other elements or ideas than he has more power. for example lord chaos and master order have absolute control over there domains and as well as anything connected to it. they can change whatever they want in there specific dimensions and lower ones as well. However, eternity/Infinity, which is the personification of life and space/time would have control over order and chaos. He IS the universe, so he would have absolute control over anything that is a part of him. this is only nullified when an abstract(s) of equal importance or raw ideas are present. In the case of marvel comics, death and oblivion are at similar levels of power. thus they can challenge eternity/infinity's power. TOAA gave the living tribunal jurisdiction over all of the multiverse, and thus, there is no number of abstracts or beings that can challenge the LT under any circumstances because it isn't there place to beat him.

So we can assume that LT is stronger than the sum of the MU and Eternity can only be challenged by any beings lower than him, so on and so forth.