Bugenhagen, Wise Elder

A two-mana any-color rock on a body is already an engine slot, but the upkeep draw is where the design gets pointed. Most fixing creatures ask nothing of you: they tap, they filter, they sit. This one hangs a repeatable card off a fatty threshold, so it stops being generic ramp and becomes a payoff for a specific kind of deck: the one already committed to putting a power-7-or-greater creature on the board and keeping it there. That single condition carries the entire cost-to-power exchange. Meet it and you draw every upkeep on top of the mana; fail to meet it, or lose the big creature to removal, and the trigger does nothing, leaving a 1/3 that reaches and taps for color. The reach is not incidental either: a defensive body that wants to hold a large creature back until upkeep is a body that wants to survive the air, and the extra toughness lets it block into range while the payoff assembles. What it rewards is a green ramp shell built top-heavy on purpose, leaning on the fixing to cast whatever the ramp reaches and the draw to refill behind it. The distance between cornerstone and vanilla mana elf is measured entirely in the size of the creatures around it.