Fa'adiyah Seer

A green filtering engine that only ever keeps you lands, which sounds backwards until you read the color it's printed in. Green is built around extra land drops, and this two-mana 1/1 turns each draw into a slow drip of fixing: tap, look at the next card, keep it if it's a land, pitch it if it isn't. The cleverness is in how the ability launders the cost of digging. Most card selection in green pays full retail (cantrips, scry) or asks you to arrange your draws first. This asks for neither; it churns through nonland cards for free, accepting the discard as the price, and converts a fragile body into a repeatable land-finder. That makes it a quiet enabler for two different agendas: graveyard decks happy to bin nonlands one at a time, and ramp shells that want to hit every land drop without flooding their hand with spells they can't yet cast. The discard is less downside than routing: it sorts your deck for you, one card per turn, into the zone where each card type does the most good. Whether that's a useful sort depends entirely on what you've built around it, which is the defining trait of a conditional engine: it rewards a deck constructed to feed it rather than one that merely includes it.