It can trigger on-death effects easily, giving you those effects while also ramping you with Treasure tokens
The Beta set is especially notable for its inclusion of Magic: The Gatherings Power Nine - a series of nine cards featured in the card games early Alpha, Beta and Unlimited sets that are widely considered to be the most powerful Magic: The Gathering cards ever made
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
The possibly-busted Mickey Mouse Inspirational Warrior jumps into action, banjo string at the ready
Recoil is a great card and the first on this list which really deserves a cube slot
We do know that these cards are, however, quite rare - perhaps comparable to Enchanted Rares