Bountiful Harvest

Five mana for a lump of life and nothing else is the kind of card that exists to teach a beginner what lifegain is, then politely exits the conversation. The math is the whole proposition: in a deck doing what green decks do, the land count this rewards lands you somewhere in the high single digits to low teens of life by the midgame, which is a real number and an irrelevant one, because a sorcery that does only that is paying full retail for a payoff that affects no board and no card on either side. The genuinely instructive thing is what it withholds: most green lifegain hangs the gain on something else (a creature, a spell you were casting anyway, a land that taps for more than a number), and this isolates the effect on its own, in the purest and least useful form available. It is the control group for the experiment, the version that shows you why every other green lifegain card bothers to do a second thing. As a baseline for evaluating better cards, it has a quiet utility; as a card you cast on purpose, it asks you to spend a full turn buying a resource that wins no games by itself.