There are also key synergies tokens, and my favourite, artifact aristocrats, getting the most out of cards like Skullclamp or Ichor Wellspring
The Best Knight Payoffs Virtue, loyalty and chivalry are your payoffs for playing knights, and made evident by Virtue of Loyalty, The Circle of Loyalty, and Chivalric Alliance
Your ramp is more redundant than artifact ramp and you can diversify it over lands and creatures so as to be hard to shut down
Getting an arbitrarily high life total is another great payoff that might not win you the game, but which should give you the time you need to either dig for the win or just whittle your opponents down until they're dead
Want to learn more about the different keywords and common abilities
I am for the abolishment of the reserve listbut not as a panicked response to a very real threat