if there are Pendulum Monsters in both Pendulum Zones, the player can perform a Pendulum Summon
They can scuff faster than you want Foil surfaces can pick up scratching and clouding from play and handling
Scientists Abian, Luvion Usurper (playtest) Academic Dispute Academy at Tolaria West Akroma's Blessing Akroma's Vengeance Amber Gristle O'Maul Ancient Excavation Anje's Ravager Anvil of Bogardan Arcane Subtraction Arm-Mounted Anchor Astonishing Spider-Man Asylum Visitor Atemsis, All-Seeing Attunement Aura Extraction Avaricious Dragon Awaken the Honored Dead Backslide Bag of Holding Bandit's Talent Barkhide Mauler Barren Moor Battlewing Mystic Bazaar of Baghdad Bedlam Reveler Blasted Landscape Bloated Toad Blood Fountain Blood for the Blood God
It's also worth scrolling through this thread to see what others are asking
The Traveling Chocobo is also available in collector boosters in neon blue, green, pink, and yellow, and for the Mels out there, the mechanics on each of these is identical with a very good play from the top of your library effect and triggered ability doubler