victor vs battler

victor and battler both are nouns.

Word	Noun	Adjective	Verb	Adverb
victor	Yes	No	No	No
battler	Yes	No	No	No

As nouns, battler is a hypernym of victor; that is, battler is a word with a broader meaning than victor:

Other hypernyms of victor include belligerent, combatant, fighter, scrapper.

victor (noun)	battler (noun)
the contestant who wins the contest	someone who fights (or is fighting)
a combatant who is able to defeat rivals