An ability that triggers "when you unlock this door" triggers when that door becomes unlocked
Sets with lots of different alternate styles like March of the Machine seem to demonstrate that it's some combination of the two as more popular art styles are worth more than the regular art, while other variants cost far less
The actual information in your dataset will depend on your personal preferences, but as a general guide, I would recommend at minimum knowing the following about each card: Set name (and code, if applicable) Card name Card number Finish (non-holo, reverse, etc) Languages the card was released in (if applicable) Release date (or the the very least, release order) Ive also catalogued each illustration for each different printing, but depending on the way youd like to set up your own sheet, that may or may not apply
It keeps your display clean and professional
Printed proxies are for casual play and playtesting where your pod, store, or event explicitly allows them
Additionally, one can also use cards that banish or return the Fusion Monsters to the Extra Deck to avoid the retriever effect
