Add cards that help you produce more mana or the right colors of mana
Kaina: Close-quarters combat mode
From there, Charizard ex carries the game, capable of attaching Energy to himself through his Infernal Reign ability
4 Mishra, Claimed By Gix Ancient Phyrexia Given Form Urzas less famous younger brother is nevertheless a force in the Commander format, providing a huge advantage to any red/black deck that likes to attack with creatures
22 Galadriel Of Lothlrien The Scrying Queen Manipulating the next card you're going to draw sets you up to have the best possible answer for any given situation and with the wonderfully thematic Galadriel of Lothorien, you'll be able to gaze into the future and pull exactly what you need
The decklists for each of these precons, for instance, havent been revealed yet, so they could contain better reprints