first edition mewtwo card 1999 Pokémon Mewtwo Base Set Unlimited Holo #10 PSA 8 NM-MT – Domino City Gaming [PP] Barrier Mewtwo - No Rarity (Japanese).,

These zones were not treated as Spell & Trap Zones, and Pendulum Monsters could not be placed in the Spell & Trap Zones

Run up to 1, though many players won't really bother

Although I would imagine they would have to dramatically increase the number of usable cards if they planned to do that

If you can pull off the time counters to circumvent its suspend 6 then it's great

More than 5 years have passed since its first appearance, it has "double piercing damage", and there is also the existence of "Blue-Eyes Chaos Dragon" that can be ritual summoned under the same conditions, so it will be a difficult development if you can survive with only 2 monsters

Cleanse the deck first (with smoke, crystals, or intention), then use a pile shuffle or granny shuffle to thoroughly mix the cards