[mmmpetrichor]

This became a hot discussion issue in magic the gathering online (MTGO). I always felt my shuffles in MTGO felt different somehow than my offline paper shuffles. It's hard to know for sure when its all closed source. I know a lot of people were suspicious though.

[Fezzik]

MTGA uses a method called ‘smoothing’ for initial hand selection: https://mtgazone.com/mtg-arenas-opening-hand-algorithm-and-s...

I assume MTGO uses something similar and I swear I had a great analytical article bookmarked regarding MTGO shuffles but I can’t find it.

[malnourish]

Modo uses FY and fits not smooth draws. Arena only smooths in best of 1 matches.

[IncreasePosts]

Closed source doesn't need to stop you - even if a server was dealing out the cards you can still do a randomness test on them once you gather enough deals, but you would probably need millions of hands of data to do the analysis (see: dieharder tests)