Law of Conservation of Ninjutsu
battle it out
take on
measure swords with someone
play
kick ass and take names
master
superior
meet
encounter
victor
OHKO
call-out
fight to the death
play fight
call out
bout
submit
wrestle
truel
dance
rematch
zensho yusho
matched
tomato can
in competition
melee
monomachist
misdefense
outarmed
grudge match
hold the ring
battle royal
keep someone honest
second
counteradvantage
overmatch
man up
UFC
wrestle with a pig
duel
presentation
have the best of it
gunfight
fight
maintain
attack au fer
uphold
face
deathmatch
archcompetitor
make mincemeat out of
contender
competition
giant-killer
eyeballer
pancratium
cross swords
defending
contest
underhold
infighting
technical
war of attrition
pistols at dawn
rounder
affaire d'honneur
walk all over
tsuki-oshi
kickbox
dueling
close combat
close-quarter fighting
high ground
spoiler
handbags at dawn
tilter
rebel without a cause
wipe the floor with someone
measure swords
combat sport
preliminary
disarmament
rinse
fighter
competitorship
combo breaker
withstander
first blood
just
squeeze out
Susan Lucci
upsetter
vie
to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.