56mm x 87mm card sleeves Ultra Pro Board Game Lite: Standard American 56 (100) while still protecting and extending the life of board game cards Amazon.com: BCW 1-BG-56X87 Gaming -

Yu Gi Oh Cards Without Backgrounds - Malefic Cyber End Dragon Png is a totally free PNG image with transparent background and its resolution is 957x567

If it survives to your next turn, it retreats for free, and you start the process over again

The effect that returns Spirit Monsters to the hand, as well as their transparent appearance, may be a reference to them not being able to stay on the physical plane for long.

Archival Safe: Made with Acid-Free and No-PVC materials to ensure your cards don't degrade or yellow over time

My wife and I have been working through the combinations and she even started a spreadsheet to track the match up favorability ranking.