PSA Gem Mint 10 is the highest possible grade awarded by PSA (Professional Sports Authenticator), a globally recognized third-party grading service
Lightning / 120 / Stage 1
You could also consider Stonjourner (121) from this set as an option, as it is another Basic Pokmon, has a solid 130 HP but also has a strong Ability, Exoskeleton , which reduces the damage it takes by 20 from attacks (including your own, though thats not relevant here)
Several other, smaller announcements were made during the anniversary live stream , including a new music player product, and release dates for Pokmon XD: Gale of Darkness and Pokmons big Switch and mobile battle game, Champions.
If you manage to activate Saheeli's last ability multiple times, each emblem you get is applied independently