Gloomhaven: Jaws of the Lion

To set up the scenario, open the Scenario Book to pages 8 and 9, and the Supplemental Scenario Book to page 3. These pages combine to form the map for the scenario. Place all indicated monsters, damage traps, treasure tiles, and money tokens on the map as shown. For the monsters, use their full 8-card ability decks for Stone Golems and Zealots, discarding any 'Basic' monster cards. Place the Element Board in the play area, with all six element tokens (Sun, Ice, Fire, Night, Wind, Leaf) in the 'Inert' column. Each player then draws two Battle Goal cards, secretly chooses one to keep, and returns the other unseen to the box. Finally, each player retrieves the three ability cards marked with an 'X' from their character box and adds them to their hand. These cards will be available for the rest of the campaign.

The primary objective of this scenario is to destroy all summoning stones and eliminate all enemies on the map. Summoning stones are considered objectives and have a health value of C+1 hit points, where 'C' is the number of characters participating in the game. They can only be targeted by melee attacks and cannot be affected by conditions (like poison or muddle) or push/pull effects. When a summoning stone is destroyed, place a rubble token on its hex. This hex then becomes traversable by figures, similar to an empty hex. Note that objectives are not considered obstacles for gameplay purposes, meaning abilities that specifically target or destroy obstacles cannot be used on summoning stones.

During the game, when new monsters are spawned (e.g., after destroying a summoning stone), they are placed on the marked locations. If a marked location is occupied, the monster spawns in the nearest unoccupied hex. Spawned monsters act immediately in the round they are added, following the standard monster activation rules. When a character performs an action (or part of an action) that has an element affinity symbol, the corresponding element token is moved to the 'Strong' column of the Element Board at the end of that character's turn. At the end of each round, after all characters and monsters have completed their turns, all element tokens currently in the 'Strong' column are moved to the 'Waning' column, and any tokens in the 'Waning' column are moved to the 'Inert' column.

At the end of the scenario, after successfully completing the scenario goals, each player reveals their private Battle Goal card. If the player successfully completed the objective listed on their Battle Goal card, they gain a checkmark. These checkmarks are recorded by checking off the leftmost empty square in the 'Rows' section of their character notes. For every three checkmarks accumulated in a row, the player immediately checks off a bonus perk from the 'Perks' section of their character sheet. If a player fails to complete their Battle Goal, they do not gain a checkmark, but there is no other penalty for failure.

The scenario concludes successfully when all summoning stones have been destroyed and all enemies have been eliminated. Upon successful completion, each player gains 6 experience points, in addition to any experience earned during the scenario. The scenario also rewards a Mana Potion (Item 14), which is retrieved from the box. Players must collectively decide which single character will collect this item. In preparation for the next scenario, each player will now have 13 ability cards (their original 10 plus the 3 'X' cards retrieved earlier). However, for each new scenario, players can only bring a number of ability cards equal to the number listed on the top right of their character mat (typically 10). Players will choose which 10 cards to bring and which 3 to leave behind at the start of every future scenario.