When you add in land-searching options like Town Greeter and the landcyclers, as well as four-mana ramp spells like Reach the Horizon, getting the mana together to cast Omega, Diamond Weapon or Coliseum Behemoth is a question of when, not if
Lure Modules and Egg Incubators appear as UR Trainer items
One simple card in the notoriously powerful Urza block made them insurmountable: Yawgmoth's Will
and finally, his second attack, Power Edge (for three colorless energies), has a base 130 damage
Charizard cards generally have a 'discarding energy' problem, and this one is worse than most - discarding all five of the energy required to power its ultimate the moment you use it
Illustrated by Vincent Christiaens Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Banned Comp