Kaito, Dancing Shadow

The whole engine hinges on a return-a-creature-to-hand trigger that most planeswalkers would treat as a downside. Here, bouncing your own attacker after combat damage is the toll that unlocks a second loyalty activation, so the card fuses a tempo aggressor with a planeswalker in a way that rewards connecting rather than durdling. That inversion is the design idea: get a creature through, send it back to hand, and pull two activations off the same turn. The three abilities are individually modest (a one-target attack/block denial, a raw card, a deathtouch body that drains on death), and the math on doubling is what gives them teeth. Starting at 3 loyalty, the trigger never lets you climb far and draw at once: two plusses put him at 5 with no cards, while a plus and the zero sit him at 4 with one card in hand. A single minus-two already drops him to 1, so the aggressive line trades his safety for board presence and asks you to have pressure that keeps opponents off him. This is a Kaito printed as a walker, and where the earlier design leaned on ninjutsu and evasion at the battlefield level, this one routes the same bounce logic through the loyalty engine instead. The Drone is the quiet linchpin: a deathtouch body that trades up, and whose leaves-the-battlefield drain turns an attrition grind into a steady two-point swing every time one dies.