what size are standard card sleeves Sleeve Kings Sleeves: Card Game 63.5x88mm, 110 / Pack allowing for double Standard Size Card Sleeves |

As for his activated abilities, it'll be interesting to see how the card plays out

To help ensure success, I've doubled up on two of Aster's top monsters--- Destiny HERO - Dreadmaster and Destiny HERO - Dogma--- and his Clock Tower Prison field spell

"Dragon's Mirror", "Miracle Synchro Fusion")

PSE Prismatic Secret Rare Immortal Dragon X DARK Level 6 [ ZombieSynchroTunerEffect ] ATK 500 DEF 2400 1 Tuner + 1+ non-Tuner monsters During your Main Phase: You can send 1 Zombie monster from your Deck to the GY, and if you do, this card's Level becomes the difference in the original Levels of that monster and this card

This is the format that everybody usually gets into first thanks to its rotation and consistently smaller card pool than other Constructed formats