Terisian Mindbreaker is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
Official card text
Whenever this creature attacks, defending player mills half their library, rounded up. Unearth(
Complete guide
Terisian Mindbreaker is a colossal Juggernaut capable of decimating an opponent's resources in a single swing. Whether cast from your hand or unearthed from the graveyard for a surprise assault, it forces your opponent to discard their future directly into the bin.
Half a Library Away
When Terisian Mindbreaker attacks, a triggered ability is put on the stack that targets the defending player's library. They must mill half their library, rounding up. This means if they have 41 cards left, they mill 21; if they have 1 card left, they mill 1 and are left with an empty library.
The Mechanics of Unearth
Unearth is an activated ability that functions only while the card is in your graveyard. You pay the cost as a sorcery, and the creature returns to the battlefield with haste. However, it is temporary: it must be exiled at the beginning of the next end step, or if it would leave the battlefield for any other reason.
Important Timing and Rulings
Because Unearth is an activated ability and not a spell, it cannot be countered by traditional counterspells like Negate. If the creature would be returned to a player's hand or put into a graveyard while the Unearth effect is active, it is exiled instead. However, if an effect tries to exile it directly, that effect proceeds normally, and the card may even return to the battlefield as a new object later.
When to Deploy the Mindbreaker
This Juggernaut is most effective when your opponent has a large library or relies on specific combo pieces. Using its Unearth ability provides a sudden burst of power that can clinch a win in a mill-focused deck, especially since it gains haste to attack immediately.
Interaction examples
Hullbreaker HorrorIf you attack a player who controls Hullbreaker Horror, they mill half their library. If they then try to use the Horror's ability to return Terisian Mindbreaker to your hand, the Unearth replacement effect kicks in: the Mindbreaker is exiled instead of returning to your hand.
Consecrated SphinxWhile Terisian Mindbreaker mills the opponent, it doesn't count as drawing cards, so Consecrated Sphinx won't trigger from the mill itself. However, by depleting their library, you force the opponent closer to 'decking out' during their draw step, where the Sphinx will then see them draw their final card.
If you attack with two Terisian Mindbreakers at once, the abilities resolve one at a time. If the opponent has 60 cards, the first resolution mills 30 (leaving 30). The second resolution mills half of the remaining 30, which is 15. The opponent is left with 15 cards, not zero.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Terisian Mindbreaker
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
If you attack the same player with two Terisian Mindbreakers, that player will mill half their library as the first Mindbreaker's ability resolves. Then they will mill half of what remains in their library as the second Mindbreaker's ability resolves. They do not mill their entire library unless their library only had three or fewer cards to begin with.
No other card is named in this ruling.
- #2· Wizards of the Coast
If you activate a card's unearth ability but that card is removed from your graveyard before the ability resolves, that unearth ability will do nothing as it resolves.
No other card is named in this ruling.
- #3· Wizards of the Coast
Activating a card's unearth ability isn't the same as casting that card. The unearth ability is put on the stack, but the card is not. Spells and abilities that interact with activated abilities (such as Defabricate's second mode) will interact with unearth, but spells and abilities that interact with spells (such as Scatter Ray) will not.
No other card is named in this ruling.
- #4· Wizards of the Coast
At the beginning of the next end step, a permanent returned to the battlefield with unearth is exiled. This is a delayed triggered ability, and it can be countered by effects such as Defabricate that counter triggered abilities. If the ability is countered, the permanent will stay on the battlefield and the delayed triggered ability won't trigger again. However, the replacement effect will still exile the permanent if it eventually leaves the battlefield.
No other card is named in this ruling.
- #5· Wizards of the Coast
Unearth grants haste to the permanent that's returned to the battlefield (even if it's not a creature card). However, neither of the "exile" abilities is granted to that permanent. If that permanent loses all its abilities, it will still be exiled at the beginning of the next end step, and if it would leave the battlefield, it is still exiled instead.
No other card is named in this ruling.
- #6· Wizards of the Coast
If a permanent returned to the battlefield with unearth would leave the battlefield for any reason, it's exiled instead—unless the spell or ability that's causing the permanent to leave the battlefield is actually trying to exile it! In that case, it succeeds at exiling it. If that spell or ability later returns the card to the battlefield (as Static Net might, for example), the permanent card will return to the battlefield as a new object with no relation to its previous existence. The unearth effects will no longer apply to it.
No other card is named in this ruling.
Popular combos
Real combos played by the community, sorted by popularity.
Bruvac the Grandiloquent + Terisian Mindbreaker
- 1Declare Terisian Mindbreaker as an attacker, triggering its ability, causing an opponent to mill their library due to Bruvac.
Fraying Sanity + Terisian Mindbreaker
- 1Declare Terisian Mindbreaker as an attacker, triggering its ability, causing each opponent to mill half their library, rounded up.
- 2At the beginning of your end step, Fraying Sanity triggers, causing the opponent to mill cards equal to the number of cards put into their graveyard this turn.
Riverchurn Monument + Terisian Mindbreaker
- 1Declare Terisian Mindbreaker as an attacker, triggering its ability, causing an opponent to mill half their library, rounded up.
- 2Activate Riverchurn Monument's exhaust ability by paying
and tapping it, causing each player to mill cards equal to the number of cards in their graveyard, thus causing the player attacked by Terisian Mindbreaker to mill the rest of their library.
Phenax, God of Deception + Consuming Aberration + Terisian Mindbreaker
- 1Declare Terisian Mindbreaker as an attacker, triggering it, causing the defending player to mill half their library, rounded up.
- 2Activate Consuming Aberration by tapping it, causing the opponent to mill cards equal to the cards in opponents' graveyards, milling the remainder of their library.
Terisian Mindbreaker + Keening Stone
- 1Declare Terisian Mindbreaker as an attacker, triggering its ability, causing the defending player to mill half their library, rounded up.
- 2Activate Keening Stone by paying
and tapping it, causing the player to mill cards equal to the number of cards in their graveyard, thus milling the rest of their library.
Phenax, God of Deception + Sewer Nemesis + Terisian Mindbreaker
- 1Declare Terisian Mindbreaker as an attacker attacking the opponent named by Sewer Nemesis. Terisian Mindbreaker triggers, causing the opponent to mill half their library, rounded up.
- 2Activate Sewer Nemesis by tapping it, causing the opponent to mill cards equal to the cards in their graveyard, milling the remainder of their library.
Legal formats
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Meta decks with Terisian Mindbreaker
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