For me, it's because I'm poisoned by reading an article from R&D where it was said purple almost made it into the Time Spiral block, and would have been between Blue and Black, with its enemy being green.
For me, it seemed natural because of the lack of bleed between blue and black. Green and White, on the other hand, practically share the same mechanics.
For Challenge # 018.
stands for {P}.
It's funny how people's conceptions of purple cards tend to borrow more from blue and black than the other colours.
For me, it's because I'm poisoned by reading an article from R&D where it was said purple almost made it into the Time Spiral block, and would have been between Blue and Black, with its enemy being green.
For me, it seemed natural because of the lack of bleed between blue and black. Green and White, on the other hand, practically share the same mechanics.