Against the Coyotes, however, the Hawks had an X-factor, an undeniable good luck charm: Jaxson Stauber.

Source: https://www.chicagotribune.com/sports/blackhawks/ct-chicago-blackhawks-arizona-coyotes-20230211-hl4abzk75ndepmqddpq7ydnyd4-story.html

Cohen’s commitment to the Mets’ fan base is part of what drives him, and in many ways, that commitment can be an X-factor.

Source: https://www.foxsports.com/stories/mlb/mets-cohen-as-concerned-with-building-farm-as-winning-world-series

He’s got that X-factor that will get goals.

Source: https://www.thenorthernecho.co.uk/sport/23380238.afc-fylde-3-darlington-2-andrew-nelsons-return-ruined-defending/?ref=rss

MLB Playoff Watch: Who is each contender's biggest X-factor down the stretch?

Source: https://www.foxsports.com/stories/mlb/mlb-playoff-watch-who-is-each-contenders-biggest-x-factor-down-the-stretch

The Australian also said that Hardik Pandya could have been India’s X-factor had he been picked for the WTC Final.

Source: https://www.canindia.com/ishan-kishan-could-provide-x-factor-to-india-in-wtc-final-says-ricky-ponting/

Whilst both Shami and Siraj have their own strengths but the X-factor Bumrah brings helps the bowling attack maintain sustained pressure.

Source: https://indianexpress.com/article/sports/cricket/india-has-pace-bowling-depth-but-where-are-the-backup-bowlers-8661271/