During the End Phase: You can place 1 non-Synchro "Centur-Ion" monster from your hand or GY in your Spell & Trap Zone as a face-up Continuous Trap
However, times have changed, and Leafeon's crown now belongs to the English version, though that hasn't diminished this card's popularity in Japanese
The biggest concern is that over time, the tighter fit will cause a card to warp (the slight bending of the card) due to the extra pressure being put on the card
MAR cards show up in a dedicated slot in Collector boosters, and you're 100% guaranteed to get one in each booster in that sense, they are more common than proper mythics from the main set
See how to assemble your Pokemon Evolution Cards here: We have a handy video tutorila for our pokmon evolution cards
The 56 extended-art cards from the Commander set are only found in non-foil