2 cards where the name includes “decaying”

Decaying Soil (Odyssey #127)

Decaying Soil {1}{B}{B}

Enchantment

At the beginning of your upkeep, exile a card from your graveyard.

Threshold — As long as seven or more cards are in your graveyard, Decaying Soil has “Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay {1}. If you do, return that card to your hand.”

Illustrated by Don Hazeltine

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Decaying Time Loop (Doctor Who #80)

Decaying Time Loop {3}{R}

Instant

Discard all the cards in your hand, then draw that many cards.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

“We try, it doesn’t work, we try again. We learn, we improve, we fail again, but better.”
—The Thirteenth Doctor

Illustrated by Alexander Gering

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny

The message was clear to Sorin—time to search for something else.