The term "defending player" in the myriad rules (or any other ability of an attacking creature) refers to the player the creature with myriad was attacking at the time it became an attacking creature this combat, the controller of the planeswalker the creature was attacking at the time it became an attacking creature this combat, or the protector of the battle this creature was attacking at the time it became an attacking creature this combat
Before the cards would be seen as both separate and combined by effects letting Wear // Tear be seen as a 1, 2 and 3 CMC spell
A precise scale (authentic cards ~1.7 1.8 g), UV blacklight (transparency/fluorescence), 20 loupe (rosette/print pattern), and a digital microscope anchor the workflow
Magus Lucea Kane Magus Lucea Kane is a wildly powerful commander that exploits X-spells by doubling them, which gets crazy when you think about it for a moment
I obviously recommend having one whenever you can, since theres no downside to having one