You can only use each effect of "Assault Sonic Warrior" once per turn
For large orders, consider using escrow services and always clarify payment terms (e.g., upfront, Net-30) before committing
As mentioned above, each deck must have one or two ink types, and each ink type offers a different style of play
Vanilluxe can be obtained from Fantastical Parade pack in the Fantastical Parade set
It is always better to purchase slabs in person, particularly when buying a lot, as you can hold them, get a feel for the plastic, and get a much better view of the label than you will on sites like eBay or PWCC
I'd spotted some really excellent work posted up on reddit by users djpattiecake and bigupalters and became interested in giving foil alters a go