Apart from the auto-include in your vintage Magic deck zero mana artifact, the so-called Reserved list is home to a lot of cards that are equally rare and valuable
In this set treasures appeared primarily, though not exclusively, in Red, Black and Blue
Its power scales with your hand, and wheels like Windfall or Wheel of Fortune drain the whole table at once
These can range from providing additional mana to creatures, drawing extra cards, or conferring strategic advantages that significantly influence the course of the game
Kiora, the Crashing Wave In Commander, Kiora, the Crashing Wave is often a sorcery speed Growth Spiral for 4 mana that leaves a planeswalker behind
You can use a Stifle effect on Smoke Bomb, or blink or phasing to keep it around an extra turn