See Beyond [Planechase Anthology] SPA Aliento de Malfegor Set: Time Spiral Type: Creature

Set: Time Spiral Type: Creature — Fungus Rarity: Uncommon Cost: {2}{G}{G} At the beginning of your upkeep

When Aven Cloudchaser enters the battlefield

Set: Fate Reforged Type: Sorcery Common Cost: {5}{B} Delve (Each card you exile from your graveyard while casting this spell pays for {1}

If that artifact is a Contraption

master carver

See Beyond [Planechase Anthology] SPA Aliento de Malfegor Set: Time Spiral Type: CreatureSet: Planechase Anthology Type: Sorcery Common Cost: {1}{U} Draw two cards, then shuffle a card from your hand into your library. Ancient lore locked in a mind driven mad is just as safe as when it was locked deep underground.