Gravebreaker Lamia

A tutor that fills the graveyard instead of the hand, which sounds like a downgrade until you notice what it does next. The search puts any card into your graveyard, then the static ability discounts every spell you cast from there by a generic mana. That pairing turns the entry trigger into a setup move: fetch the expensive reanimation spell, the flashback bomb, the escape threat, whatever your yard wants, and cast it a mana cheaper than the graveyard usually offers. Most graveyard payoffs make you wait for the right card to die or mill into place; this one lets you choose the card and pre-pay part of its cost in the same motion. The 4/4 lifelink body is a real clock and a life buffer, but the deckbuilding gravity is the discount, which rewards a shell stacked with graveyard-castable spells rather than a single reanimation target. The cost-reduction also reads as color-agnostic mana, so it shaves flashback, escape, jump-start, and disturb costs alike wherever those keywords let you cast from the yard. The friction is that the fetch is not selective about how the card gets used: it goes to the graveyard whether or not you have a way to cast it from there, so a lamia in a deck without graveyard recursion is just a 4/4 that thinned nothing you can spend.