>>31445670I have a shiny Salazzle and I've noticed the same thing.
She tanks hits that should've killed her, she sometimes even survives with just 1 HP, she dodges better than other Pokemon with the same affection level, she lands crits like they're going out of style, and status effects never last longer than two turns.
I used to carry around a full team to deal with any situation, but Salazzle sweeps through opponents so quickly and easily that I can literally just carry her around alone and be fine.