Whats that one pokemon that has been with you since the start of your journey, I'll go first

This charizard was caught in june last year as a referral quest after i referred someone as a lvl 23 back then this was very powerful and i used it a lot as i levelled continued playing pokemon, i eventually used it in the great league after a while i decided to power it up even further in july or so mega charizard Y raids were around so i got to mega evolve it after a few more months i decided to power it up even further it started as just a 1.2K cp charizard, its now one of my longest serving and favourite pokemon