Guidelight Matrix

Two mechanics that both leaned on creatures to function get a dedicated off-body enabler here, and the split personality of its two activations is the design worth reading. Saddle normally wants you to tap creatures to bring a Mount's better mode online, spending bodies you might rather keep upright; the first ability hands the Mount its saddled state directly, no tapped creatures required, though it is sorcery-locked to keep it a pure setup tool for your own main phase. Vehicles have the opposite problem, wanting crew before they can attack or block; the second ability animates one outright, and crucially it is not sorcery-restricted, so it can fire on an opponent's turn to reveal a surprise blocker that had been sitting inert as an artifact. That timing asymmetry, one ability walled off to your turn and one wide open, is deliberate, and it makes the same permanent a proactive Mount-enabler on offense and a reactive Vehicle-animator on defense. Because the rule that withholds a permanent's tap ability applies only to creatures, this can tap the turn it lands even though it just entered. The enters-the-battlefield draw is the honest admission of the ceiling: a two-mana permanent whose activations mean nothing without a critical mass of Mounts and Vehicles has to replace itself, or it rots in any hand that drew the glue without the bodies. Purpose-built support for a pair of mechanics that struggled to stand without exactly this.