If you really think about it, there have been cards of every type that have been too good, overpowered, and unhealthy like Skullclamp for equipment, Jace, the Mind Sculptor for planeswalkers, Yawgmoth's Will for sorceries, and so forth, but Wizards wisely realized that you don't just give up on equipment altogether because they messed up with Skullclamp or planeswalkers because they had to ban Jace, the Mind Sculptor in Standard
Below, youll find some of the priciest cards around, marking some of the rarest in the games history
This includes one Commander card, one "display" version of the Commander card (foil on slightly thicker card stock), single copies of synergistic cards within your Commander's colors, and all the basic lands you need (along with an assortment of tokens)
Its still a powerful card and I think it would be better served with her in the lead if you find yourself more combo-oriented in your dragon build