Crop Sigil
The clever twist here is that the enchantment funds its own activation. Self-mill on every upkeep does double duty: it digs toward the creature-plus-land recursion you want, and it stocks the graveyard with the assorted card types delirium demands before the ability ever turns on. A green enchantment that fills its own yard while waiting to crack itself for two cards is an unusually self-contained engine for a single green mana. The cost is patience rather than mana: the activation reads cheap, but delirium gates it behind a diverse graveyard, and clearing that bar reliably wants instants, sorceries, and artifacts doing work alongside the lands and creatures you actually plan to buy back. The sacrifice clause is what keeps the recursion from being open-ended; this is a one-shot Regrowth split across a creature and a land, paid for over several turns of mill, not a repeatable value loop. It belongs to green's long tradition of treating the graveyard as a resource to be assembled rather than raided, where the payoff is delayed because the setup is the point. It rewards a deck already committed to a wide spread of card types, then hands that deck a flexible two-for-one when the conditions line up, all from a card that asked only for that lone green mana and a few quiet upkeeps to build itself.
