Realmwalker - Casting cards from the top of your library is always great for card advantage
(Did you know that BoltwaveBoltwave is the only one-mana burn spell that can deal three damage to each opponent without paying additional costs?) There's been a lot of talk about the old strategy of Counter-Burn lately, and it's all thanks to everyone's favorite Dracogenius
Honorable Mention: Xenagos, God of Revels Im splitting hairs here, but Xenagos, God of Revels essentially doubles a creatures power without saying so since it gives them +X/+X and haste, which really makes the card
Some of these cards will drop off completely, but even in the main set theres a lot of power and cards that people want to get their hands on
Even in a world with mana burn (where you lost life if you didnt spend all the mana in your mana pool between phases), I still cannot understand why this card saw print, let alone why the prospect of losing a few points of life was considered sufficient downside for generating 2-7 mana in a color not known for mana ramp
He highlighted the long co-development period with Square Enix as the most enjoyable aspect, despite the challenge of meeting high fan expectations