Clearly in her element, analyzing and inventing with a steampunk style magnifying lens, the card has many gadgets floating around her on the card as she is outlined with the light blue of Sapphire ink
Cavern of Souls reassures none of your dinosaur spells get countered as long as you use this land card as a mana source for casting them
The one potential exception here is Pia Nalaar, which, while she does not technically have improvise, does provide a healthy set of stats and a relevant ability
TWO DECADES OF CHANGE The answer is, because the schedule used to work out perfectly
Mass removal for red tends to suffer from the same problem, but usually the spells you'd like here are X spells like Earthquake or Comet Storm, both which reward big mana, but that can be a hefty price when for a fraction of the cost you could have cast End Hostilities and had the same or better result