Trove Warden
A recursion engine that pays for itself twice over: every land drop banks a small permanent card in exile, and when the Warden dies the whole cache floods back onto the battlefield at once. The design is doing something quietly clever with the sequencing of that exile. Cards tucked away with landfall are not lost the way graveyard-hate exile loses them; they are being held for a delayed reanimation payload keyed to the creature's own death. That reframes what looks like a removal magnet into a storage vault, where killing the Warden is exactly the trigger the pilot wanted, and where a sacrifice outlet turns a slow accumulation of small artifacts, enchantments, and creatures into a single explosive board development. The three-mana-value ceiling is the leash: it keeps the graveyard toolbox pointed at the cheap, high-density permanents (mana rocks, utility creatures, value enchantments) rather than the game-ending bombs, so the engine rewards a wide, granular graveyard over a single fat target. Note the payload's fragility, though: the return clause reads "dies," not "leaves the battlefield," so a blink effect that exiles and returns the Warden strands every card it was holding permanently. The exiled cache is tethered to this specific creature dying and hitting the graveyard, not to it flickering elsewhere. Vigilance is the incidental tax the color pays to let a 3/4 attack without opening itself up, but the real work is in the loop between land drops and death triggers, in a color that has spent its history recurring one creature at a time rather than raising a graveyard wholesale.
