Gloryheath Lynx

Land-fetch stapled to an aggressive body is not a new idea, but tying the trigger to Saddle is a specific bit of design thinking about the mount mechanic. The 2/3 lifelink frame is a fine two-drop on its own; the payoff only comes when you divert two power's worth of other creatures to strap them in, and only when the Lynx actually swings. That is a real cost in the early turns, when tapping down attackers to enable a single land-fetch works against the tempo a white aggressive deck wants. What it buys is smoothness: a guaranteed Plains to hand keeps the curve honest and thins the deck a fraction, and lifelink means the attacks that fuel the search also close the life-total gap the deck opened. The Saddle-only-as-a-sorcery clause is the honest limiter here; you cannot ambush-saddle in response to a block, so the whole engine has to be set up on your own turn before combat. It rewards having spare bodies you were not planning to send in anyway, which is exactly the kind of go-wide white deck that also wants the extra lands to keep casting. That alignment between what enables the trigger and what wants the reward is the quiet cleverness of the card: the Saddle tax and the payoff pull in the same direction rather than fighting each other.