End Phase Pokmon TCG Compreh Page 22 and 23: Pokmon TCG Comprehensive Rules 70 Page 24 and 25: opponent The player opposite a card
As of right now, each jump-start card also has accompanying reminder text, likely because it hasnt become an evergreen mechanic yet
If youre buying one card from five different sellers, less so
Just make sure you dont waste them on small creatures, and instead save them for your opponents biggest, scariest creatures
I believe Foil cards are slightly thicker, so those would mess with the calculations, and I have not accounted for double-sleeved cards
Glory, a five mana 3/3 flyer, seems laughably overcosted by modern (or Modern) standards, but it's not being played for its stats