Bender's Waterskin works best with cheap cantrips, but Wilderness Reclamation and Seedborn Muse are the gold standard: You can spend all your mana on your turn, then still untap to hold up whichever instants you like against your opponents
The Meathook Massacre The Meathook Massacre is perfectly unreasonable
You can exile a bunch of cards from yards with this, and the other modes are all useful
#2: Captain Sisay Captain Sisay is the kind of card that will absolutely never make an impact in competitive Magic
The fact that it gains the basic land type you choose is massive, too, since it turns on synergies with cards like Utopia Sprawl, Verges, Checklands, etc
This card grants the ability to play lands from the top of your library, mitigating the frustration of late-game land draws