Are there effects that Magic used to do that it avoids doing because of digital? One example I was thinking of was something like Mindslaver effects, which seem like a monumental task for digital clients.

First off, read this:

Why I Decided Not to Do Emrakul, and How We Shipped It AnywayDigital more influences how we make cards, doing things like “target opponent” rather than “target player”, but we do have to think through what we’re asking of the digital team for each card we make. Sometimes we will change a card if it’s going to cause major aggravation in digital and there’s another way we can do the effect. Sometimes (see the article above) we do things we know digital will have issues with because we think it would be good for tabletop play.

Hi Mark, I was just wondering why Emrakul's "mind slaver ish" ability references Emrakul, but not Emrakul, the Promised End? I thought cards now used the whole name when referencing themselves rather than a shortened version. Thanks :)

Legendary cards with a comma in their name will often just refer to the pre-comma name in card text.