mtg card explained How to Read & Understand Magic: The Gathering Cards in Minutes Explaining the Card, Explains the

This usually goes without saying, but removal is going to be a key piece of this format due to the amount of rares that will be opened at each draft table

Battle Royale This box set was a reprinting of some of the sets that were in Chronicles (Arabian Nights, The Dark) and a whole smorgasbord of others - 15 different sets were included

Legality depends on the tournament format -- Deep-Cavern Bat can be legal in some formats and banned or restricted in others

There are other commanders that would work well with goad effects that dont actually have goad printed on them, like Aurelia, the Law Above, who would give you benefits when other players attacked

Time Walk is simply, in my humble opinion, the strongest Explore variant ever printed