The Kenriths' Royal Funeral

A refund engine dressed as a memorial. The entry trigger reads like a Sign in Blood with the polarity managed by your own graveyard: you draw and pay the life yourself, and the size of both is the largest legendary you were willing to exile. That symmetry is the interesting part. Sending one big legend to exile nets a fat card draw at a steep life cost; exiling two smaller ones caps the draw at the more expensive of the pair while both bodies still count toward the discount below. So the two clauses pull in different directions: the legend you want fueling the draw is the most expensive one you can afford to bleed for, but the discount only cares about how many cards you exiled, not how big they were. The static ability turns the funeral into an ongoing subsidy, shaving a generic mana off every legendary spell you cast for each card the enchantment banished, which quietly rewards a deck built almost entirely of legends rather than a single marquee bomb. What keeps it from being pure ramp is that the payment is life and the fuel is your own graveyard: the legends have to already be in the graveyard before the enchantment can pay you back for them. It is a design that asks you to grieve efficiently, spending bodies you no longer have to smooth the path for the ones still in hand.