Batgirl

Batgirl gets -X/-X, where X is the number of other permanents in play. Put two training tokens on Batgirl. Remove a training token during your upkeep. Batgirl cannot attack or block if she has any training tokens on her.
"She was stronger alone, and her own good sense so well supported her that her firmness was as unshaken as her appearance was invariable." -Jane Austen