ante card mtg Contract from Below is one

Here's a video of me shuffling them: The main thing you probably get out of this video is how bad I am at shuffling a Commander-sized deck

It also works really well with any cards that allow you to play lands from your graveyard, letting you get multiple uses out of fetch lands

It even cantrips

Shadowspear, the titans, and Dryad of the Ilysian Grove are all solid hits and have tremendous multipliers on foil extended versions

Chandra's IgnitionChandra's Ignition (103,081 Inclusions, 4% of 2,337,008 Decks) Unlike FlingFling effects, Chandra's IgnitionChandra's Ignition keeps the creature in question alive, making it a go-to for red decks with large commanders

AncestralMTG has an expansive collection of the cards listed here, as well as many more oddities and hidden treasures