First printed in Alliances (1996)
Enchantment
Cumulative upkeep—Exile the top card of your library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When a player doesn't pay this enchantment's cumulative upkeep, that player exiles all cards from their library.
Exile the top card of your library: Prevent the next 1 damage that would be dealt to you this turn.
- Illustrated by
- Mark Tedin
Legality
- Legal in
- Legacy, Vintage, Premodern, Commander, Duel Commander, PreDH, Oathbreaker
- Not legal in
- Standard, Pioneer, Modern, Pauper, Future Standard, Historic, Timeless, Alchemy, Penny Dreadful, Old School 93/94, Gladiator, Pauper Commander, Tiny Leaders, Brawl, Standard Brawl, Competitive Brawl
Rulings (2)
- If you don’t pay Thought Lash’s cumulative upkeep, you’ll sacrifice Thought Lash as normal, then, when its triggered ability resolves, you’ll exile all cards in your library.
- If your library has no cards in it, you can’t activate the last ability.
Prices
MTGO price: 3.01 TIX, the cheapest non-foil print (average sell price on GoatBots, 2 Nov 2026).
Combos
7 combos, the most popular first:
- Win the game: Thassa's Oracle + Thought Lash
- Win the game: Laboratory Maniac + Thought Lash
- Win the game: Jace, Wielder of Mysteries + Thought Lash
- Exile your library, Infinite turns…: Nexus of Fate + Thought Lash
- Exile your library, Win the game: Fblthp, Impossibly Lost + Thought Lash
- Exile your library, Infinite lifegain…: Beacon of Immortality + Bolas's Citadel + Thought Lash
- Infinite lifegain triggers, Infinite lifegain…: Beacon of Immortality + Gwenom, Remorseless + Thought Lash
