Legend Story Studios is releasing Mastery Pack: Assassin for Flesh and Blood TCG on November 13, 2026, giving the Assassin class its first dedicated Mastery Pack entry. The set totals 157 cards across a 12-pack display, and it introduces a brand new Assassin hero alongside support for the class across both Classic Constructed and Silver Age formats.
Collectors attending World Tour Paris get first access to the product from November 6 through 8, a full week before the general retail street date. That early-access pattern mirrors how Legend Story Studios has handled several recent Mastery Pack debuts at major conventions.
The same November 13 date also marks the release of Armory Deck: Dr. Mortimer, a separate, ready-to-play Classic Constructed product built around the same new hero. The two products are designed to complement each other rather than compete, and a dedicated comparison post in this series breaks down which one actually fits your goals.
Here is what collectors need to know about Mastery Pack: Assassin itself: the rarity breakdown, the price, and how this release fits into Legend Story Studios' packed fourth-quarter 2026 schedule.
The set ships as a 157-card release packaged 13 cards per pack, 12 packs per display, with an MSRP of $64.90 per display. It carries supplementary-booster status, meaning it is designed to upgrade and expand existing Assassin decks rather than serve as a standalone starting point for new players.
Legend Story Studios describes the set as supporting every Assassin hero from Classic Constructed back through Silver Age, which gives the release a wide net for players who have been building the class across multiple competitive eras. That breadth is a deliberate design choice for Mastery Packs generally, not unique to this release.
Legend Story Studios and its distribution partners list the set's rarity split as 7 Marvel, 3 Legendary, 20 Majestic, 40 Rare, 82 Common, and 8 Basic cards. Worth flagging honestly: those six numbers add up to 160, not the 157 total figure quoted alongside them in official distributor materials, a small discrepancy in the published sheet that has not been publicly reconciled as of this writing.
Whatever the exact final count, the practical takeaway is the same: Marvel and Legendary cards sit at the extreme top of a steep rarity curve, and most collectors who land one immediately move it into a topload card holder rather than leaving it loose in the pack box. That structure is standard for the Mastery Pack line and is worth keeping in mind before setting pull-rate expectations.
The set's headline addition is Dr. Mortimer, Blight of the Pits, a new Assassin hero built around a new cure mechanic. His kit lets you cure a disease an opponent controls to create a Silver token, then cash in two Silver tokens to give an Assassin attack go again.
That design rewards a deck that both inflicts disease-type effects and cleans them up on its own schedule, a push-and-pull pattern that is new to the Assassin class. Limited play for this set supports three playable heroes total, Arakni, Uzuri, and the new Dr. Mortimer, giving Crack, Shuffle, Play drafters real hero variety out of the gate.
World Tour Paris runs November 6 through 8, 2026, and attendees get access to Mastery Pack: Assassin a full week before its November 13 general release. Convention-first access has become a recurring pattern for Legend Story Studios' bigger Mastery Pack launches, giving engaged in-person audiences first crack at new product.
For collectors not attending in person, the practical effect is a short window where early singles and pulled chase cards may surface on the secondary market before most retail shelves have the product at all. That is worth watching if you are hunting a specific card rather than waiting for general release.
At $64.90 per 12-pack display, Mastery Pack: Assassin lands in the same price range as prior entries in the line, including August's Mastery Pack Warrior. November 13 is a genuinely busy date for Flesh and Blood, since it is shared with the Armory Deck: Dr. Mortimer launch.
It also follows closely behind Smash Palace: Chorus of Steel, a separate Warrior-class multiplayer box set that hits stores October 30, 2026. Collectors tracking the whole run of fall releases are looking at three distinct Flesh and Blood products inside about two weeks.
Mastery Pack: Assassin is a distinct product from August's Mastery Pack Warrior, built around a different class and a different new hero entirely. The two should not be confused even though they share a product line name and a similar booster-pack format.
Legend Story Studios has now given dedicated Mastery Pack treatment to at least two core classes within a few months of each other, suggesting the publisher intends to keep working through Flesh and Blood's hero roster at a steady cadence. Watching convention announcement patterns remains the most reliable way to catch the next class-focused entry before it is confirmed.
It releases November 13, 2026, with early access at World Tour Paris from November 6 through 8.
The set carries an MSRP of $64.90 per 12-pack display.
Official materials list 157 cards total, though the published rarity breakdown adds up to 160.
No, Mastery Pack Warrior released in August 2026 and focuses on an entirely different class and hero.
It is a separate, ready-to-play Classic Constructed deck releasing the same day and built around the same new hero.
With early access starting at World Tour Paris on November 6 and general release following just a week later, now is the right time to line up protection for whatever you pull, starting with a reliable set of premium card sleeves.
!
