If you describe something as a leveler, you mean that it makes all people seem the same, in spite of their differences in, for example, age or social status.
But the war has been a great leveler. Everyone is equal because everyone is poor.
leveler in American English
(ˈlɛvələr)
noun
1.
one that levels
2.
a person who wishes to abolish political and social inequalities
3. [L-]
a member of an English party that arose among radical Parliamentarians (c. 1646) and advocated the leveling of all social ranks and the establishment of a more democratic government
Also sp. ˈleveller
Examples of 'leveler' in a sentence
leveler
"Sleep is the great leveler of men," Beckwith replied, getting up to fix another drink.