Fumiko the Lowblood

Most bushido creatures play defense: the keyword rewards them for being blocked, so it sits awkwardly on a card you'd rather swing with. Fumiko inverts the whole proposition by writing her own rules for combat. The compulsory-attack clause forces every opposing creature into the red zone each turn, which feeds the bushido X directly back into her: the more attackers your opponent fields, the bigger she gets when she blocks, and a wide board on the other side becomes a board that has to commit to crashing into a 3/2 that suddenly isn't a 3/2 anymore. It's a punisher dressed as a samurai, and the design tension is elegant: she grows in the combat she provokes, so the player who built her sets the terms of every fight. The compulsion is strictly one-sided, since it applies only to your opponents' creatures, so you choose when to leave her back as a wall and when to send her in. The reward scales with exactly the situation the card creates, which is a tidy bit of self-referential design from an era still working out how far it could push combat-shaping text onto a single creature. She rarely reads as a beater on her stat line, but the engine she builds (force the swing, profit from the block) makes her a quiet governor of the entire combat phase.