card pack sleeves Perfect Fit Premium Mini American (41x63mm) -55 Pack, 100 Microns SKS-3301 Their Strong Sturdy Seams Helps Keep Your Trading Cards Clean And Organized And Prevents Scratching Or Any Other Damage 1200 Pack Card Sleeves, Matte

Beyond the promos, the collection also comes with two additional Pokmon TCG booster packs (Mega Evolution and Phantasmal Flames) and a sticker sheet featuring first partner Pokmon

*Collector Booster not included *Some assembly required

The extra deck part is very key, as there is a Synchro monster Parshath card that can be summoned via this card

[1] Archetypes that focus on Ritual Summoning include "Gishki", "Prediction Princess", "Black Luster Soldier", "Drytron", "Cyber Angel", "Voiceless Voice", "Nouvelles", "Mikanko", "Megalith", "Impcantation", "Libromancer", "Vendread", "Shinobird", "Relinquished", "Dogmatika", and "Nekroz"

The ex in Pokemon ex stands for extra since ex related Pokemon and abilities often have extra effects to them and their attacks