It will contains 12 booster packs of 151 , four holo promo cards of Bulbasaur, Venusaur ex, Squirtle, and Blastoise ex, a jumbo version of Blastoise ex, and a code card
However, keen Lorcana collectors have spotted differences with their Lorcana Booster Boxes that might help identify them as some of the first boxes ever made
We hadn't made a lot of cheap milling spells at the time, so there was a bit of variance in the answers I got
The only thing that matters is ATK and DEF because monsters have no effects, no summon costs, and spells are pretty limited with only equip and field cards and work differently than their real-life counterparts
As more sets are released this may change, but so far, you should be safe from any bonus damage from your opponents attacks