The phrase "lucky mascot" refers to an object or person that is believed to bring good luck or positive outcomes to a team or an individual. It is like a symbol that is thought to bring fortune or success. Full definition
Regarded as lucky mascots by the merchant sailors these cats were sometimes exchanged for food or other valuable goods in the English ports. (best-cat-art.com)
We should get him just got that fact; like a lucky mascot with exceptional footballing vision and skill to match. (justarsenal.com)
Definitely Phil, with a new manager and some extra defenders could be interesting season and Sue, hope you enjoyed you're day, you should come more often, lucky mascot. (justarsenal.com)