In addition to this, a big part of the reason these cards were so popular was because the mana in that Standard format was quite bad, to the extent that you were pretty close to wanting Attune with Aether in your decks even before the energy bonus, but once you have the energy bonus you might as well play Harnessed Lightning, which means you may as well play Rogue Refiner to power up your kill spell, and so on
Arcee, Sharpshooter is a 2/2 creature with first strike, and you can pay one generic mana to remove any number of +1/+1 counters from it to deal that much damage to a creature
This is a perfect one to start on
Wrap Up Knight of the White Orchid | Illustration by Mark Zug White may not be the strongest color for ramping in Magic, but it still has some valuable options for mana acceleration
On the flip side, making copies of Wurmcoil Engine or Triplicate Titan will advance your board once the token gets sacrificed during your end step