The big one is Typecycling, which lets you search your library for a specific card type and add it to your hand instead of drawing a card as normal
Sol Ring provides universal mana acceleration, while Command Tower offers perfect fixing for multicolored strategies
Plus, red just doesn't offer much artifact support in Historic at the moment, so apart from Breya's Apprentice and Goblin Engineer (also coming in Jumpstart: Historic Horizons ), you're not really gaining that much from moving into red
If you do, discard that many cards
Speed and card advantage are great, as is having a tremendous source of commander damage in the command zone, but how do you build a balanced shell, capable of interacting meaningfully while still applying pressure
It's a great mana dork in Eternal formats filled with fetch lands, but the activated abilities are also incredibly powerful