It was changed recently https://magic.wizards.com/en/news/announcements/card-updates-coming-with-khans-of-tarkir-on-mtg-arena

And then there is PIC 99 in Cobol. In modern languages, it makes no sense, but there is still a lot of really old code around and not everything is twos complement, especially if you do not need the efficiency in memory and calculations.

The Link does not work for me

I’m hyped for the Doctor Who commander decks and need to find time to rewatch the series before release