All of the colorless cards in the set are artifacts, although some have other subtypes as well such as Food or Creature
Red-blue wizards especially has a lot of cheap tricks in that vein
Arena players got digital-only cards and periodic rebalancing in Alchemy and Historic, collectors got a glut of Secret Lairs, Dungeons and Dragons players got their own standalone set, and those of us with a penchant for Modern got a real monkeys paw scenario with Modern Horizons 2
I don't see any benefit in doing so, personally
Turtles in Time This blue board wipe is expensive, but I have to respect the gimmick
None of these blue ramp spells are exactly Llanowar Elves or Rampant Growth, but as EDH speeds up it gets harder and harder to cast your big mana spells before the game is lost