This means that no matter how much removal your opponents have in hand, you can simply cast Tergrid turn after turn and eventually see the fruits of her labor
She also allows Alien characters to challenge ready characters, so coupled with Aliens already in play, you'll give them Challenger +2, and they can challenge ready characters at the same time, and she's not expensive to play either, at just two ink
Fortunately, it isn't quite as restricted, and you still have some good options when ignoring the plethora of colorless artifacts that work just as well if not better for accelerating your mana production
Instead of getting flyers, you get 3/3s with trample, haste, and crucially melee
While the raw card price is still fairly affordable, expect to shell out hundreds or thousands of dollars for graded copies in clean condition, especially as Pikachu cards continue to rise in value