We rebuilt that file many times, and playtested many times, so it was a lot of work
If you drew any cards in this way, attach up to 2 [G] Energy cards from your hand to 1 of your Benched Pokmon
The Spear of Leonidas (the card Kassandra searches for) is a great Equipment as well, giving you a versatile tool depending on the game state
Physical damage works by multiplying the unit's physical attack with their weapon's strength, so as their PA naturally increases as they level up and get access to increasingly stronger weapons, their damage output increases at a quadratic rate (or in the case of Monks and units with the Martial Arts support skill, their damage output works by squaring their PA, again leading to a quadratic rate in improvement)
You get a significant price reduction per pack when you buy them in a box, and because they shipped directly from the factory, many report somewhat more standardized pulls from them i.e
And, more importantly, it gives you the ability to steal Monsters from your opponents Graveyard