Cromwell, Iron Cannon/Trivia

Shield Go - "While this creature is face-up in your shield zone" (Each of these creatures have the "Shield Go" ability and have an ability while they are face-up in your shield zone.)
 * — Jetstone, Over Size Dome
 * — Ikari, Hustle Commander
 * — Phantom, Rose Blossom
 * — Cromwell, Iron Cannon
 * — Canis, Wonderful One