Single post in Pick-A-Poké: Your One Stop Shop for Trading, Dexing, and More

I need help dexing, like, all the Alola legendaries/mythicals. ^^;; It's one of the last sections I need help with for summon items. It says I need seven more to reach the target and I've done all the common pokes I can. (Minus alternate forms.) May I please borrow some Alola legendaries/mythicals? =) Additionally: Is the only way to get/unlock eggs for Alola legendaries/mythicals is to already have them dexed? This section confuses me.