Loki, the Deceiver is the backup, and it feels overtly more powerful since it draws cards and makes copies of your best villains
If a creature an opponent controls can't attack for some reason (such as being tapped or having come under its controller's control that turn), then it doesn't attack
There are way more than just the original 10 guildgates now, so options are plentiful, and there are tons of good land tutors available like Circuitous Route, Scapeshift, and Crop Rotation
And with four will power, hes a relatively beefy character given his utility
Being such a one off you basically need to win with it when you use it and this massively reduces the number of threats that are good with it compared to Sneak Attack
Evoke Evoke is like level up but generally in reverse, it allows you to have a really strong late game card that can be used to lesser effect when in the more important and more random early stages of the game