Whether a part of control, aggro, tempo, or combo decks, Brainstorm was an absolutely defining force in Vintage until its eventual restriction, and to this day, is clearly way, way over the line for Legacy, except that it just gets a pass, because we want it
Farseek used to see a lot of play in Modern Scapeshift, but currently Farseek is primarily used as a Commander staple
Were not here for that
The two Koths obviously want to be in the same deck as Mono-Red or two-color deck with enough basics to fetch out and enough duals to make the -3 work
Crucible of Worlds is a true multi-format all-star, showing up everywhere from Modern to Legacy and even Vintage
Empowered Autogenerator Mana rocks are always useful in Commander, but why settle for just one or two extra mana per turn