12 cards where the text includes “those spells”

Breeches, Brazen Plunderer {3}{R}

Legendary Creature — Goblin Pirate

Menace

Whenever one or more Pirates you control deal damage to your opponents, exile the top card of each of those opponents’ libraries. You may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells.

Partner (You can have two commanders if both have partner.)

3/3

Illustrated by Svetlin Velinov

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Dead Man's Chest {1}{B}

Enchantment — Aura

Enchant creature an opponent controls

When enchanted creature dies, exile cards equal to its power from the top of its owner’s library. You may cast spells from among those cards for as long as they remain exiled, and you may spend mana as though it were mana of any type to cast those spells.

Illustrated by Jason A. Engle

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Draugr Necromancer {3}{B}

Snow Creature — Zombie Cleric

If a nontoken creature an opponent controls would die, exile that card with an ice counter on it instead.

You may cast spells from among cards in exile your opponents own with ice counters on them, and you may spend mana from snow sources as though it were mana of any color to cast those spells.

4/4

Illustrated by David Rapoza

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Finale of Promise {X}{R}{R}

Sorcery

You may cast up to one target instant card and/or up to one target sorcery card from your graveyard each with mana value X or less without paying their mana costs. If a spell cast this way would be put into your graveyard this turn, exile it instead. If X is 10 or more, copy each of those spells twice. You may choose new targets for the copies.

Illustrated by Jaime Jones

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Haldan, Avid Arcanist {2}{U}

Legendary Creature — Human Wizard

Partner with Pako, Arcane Retriever (When this creature enters the battlefield, target player may put Pako into their hand from their library, then shuffle.)

You may play lands and cast noncreature spells from among cards you exiled that have fetch counters on them, and you may spend mana as though it were mana of any color to cast those spells.

1/4

Illustrated by Manuel Castañón

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

King Narfi's Betrayal {1}{U}{B}

Enchantment — Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Each player mills four cards. Then you may exile a creature or planeswalker card from each graveyard.

II, III — Until end of turn, you may cast spells from among cards exiled with King Narfi’s Betrayal, and you may spend mana as though it were mana of any color to cast those spells.

Illustrated by Chase Stone

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Mind Flayer, the Shadow {4}{B}{B}{B}

Legendary Enchantment Creature — Horror

Mind Flayer, the Shadow isn’t a creature unless you control three or more permanents you don’t own.

At the beginning of your end step, exile the bottom card of each opponent’s library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

9/9

Illustrated by Isis

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Mnemonic Betrayal {1}{U}{B}

Sorcery

Exile all opponents’ graveyards. You may cast spells from among those cards this turn, and you may spend mana as though it were mana of any type to cast those spells. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners’ graveyards.

Exile Mnemonic Betrayal.

Watermark: Dimir

Illustrated by Clint Cearley

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Rogue Class {U}{B}

Enchantment — Class

(Gain the next level as a sorcery to add its ability.)

Whenever a creature you control deals combat damage to a player, exile the top card of that player’s library face down. You may look at it for as long as it remains exiled.

{1}{U}{B}: Level 2

Creatures you control have menace.

{2}{U}{B}: Level 3

You may play cards exiled with Rogue Class, and you may spend mana as though it were mana of any color to cast those spells.

Illustrated by Véronique Meignaud

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Stolen Strategy {4}{R}

Enchantment

At the beginning of your upkeep, exile the top card of each opponent’s library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells.

Illustrated by Dmitry Burmak

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Uvilda, Dean of Perfection {2}{U}

Legendary Creature — Djinn Wizard

{T}: You may exile an instant or sorcery card from your hand and put three hone counters on it. It gains “At the beginning of your upkeep, if this card is exiled, remove a hone counter from it” and “When the last hone counter is removed from this card, if it’s exiled, you may cast it. It costs {4} less to cast this way.”

2/2

Nassari, Dean of Expression {3}{R}{R}

Legendary Creature — Efreet Shaman

At the beginning of your upkeep, exile the top card of each opponent’s library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells.

Whenever you cast a spell from exile, put a +1/+1 counter on Nassari, Dean of Expression.

4/4

Watermark: Prismari

Illustrated by Jason Rainville

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Valki, God of Lies {1}{B}

Legendary Creature — God

When Valki enters the battlefield, each opponent reveals their hand. For each opponent, exile a creature card they revealed this way until Valki leaves the battlefield.

{X}: Choose a creature card exiled with Valki with mana value X. Valki becomes a copy of that card.

2/1

Tibalt, Cosmic Impostor {5}{B}{R}

Legendary Planeswalker — Tibalt

As Tibalt enters the battlefield, you get an emblem with “You may play cards exiled with Tibalt, Cosmic Impostor, and you may spend mana as though it were mana of any color to cast those spells.”

+2: Exile the top card of each player’s library.

−3: Exile target artifact or creature.

−8: Exile all graveyards. Add {R}{R}{R}.

Loyalty: 5

Illustrated by Yongjae Choi

Standard
Alchemy
Pioneer
Brawl
Modern
Historic
Legacy
Pauper
Vintage
Penny
Commander

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.