Rules to review

Advancing the act
Does not cost an action.
May be done during any investigators turn.
Investigators keep any clues in excess of the required amount.

Advance the agenda deck
Is done by discarding all doom tokens from play.

Attack of opportunity
An ability that costs more than one action only provokes one attack of opportunity from each engaged enemy.

Basic weakness
In campaign mode, the selected basic weakness remains a part of the investigators deck for the entire campaign, unless it is removed by a card ability.
New weaknesses are not automatically added at the beginning of subsequent campaign scenarios, but card abilities or scenario instructions may instruct an investigator to gain additional weaknesses.

Cards commit and play
Commit cards to a skill test.
	Does not cost an action or resource costs.
	Do not use their text ability unless they are a skill card.
Play cards to your play aria.
	Costs an action and resources.
	Do not use their skill modifiers.
	Fast keyword cards are not played by using an action (they do not cost an action or a resource).

Combat
Each other investigator at the same location as that investigator may commit one card from their hand to help.
The investigator may activate (free triggered) abilities during a skill test.
If an investigator fails a combat test against an enemy engaged with another investigator, the damage value of the failed attack is instead dealt to the investigator engaged with that enemy.

Engage
Engaging enemies lets you evade them or safely attack them without risking hitting your partner.
An investigator cannot attack an aloof enemy unless it is engaged with an investigator.
If a hunter enemy moves to a location with one or more investigators, that enemy immediately engages one of those investigators.
When an enemy card is drawn, that enemy spawns engaged with the investigator who drew the card, unless it has a Spawn instruction.
Any time a ready, unengaged enemy is at the same location as an investigator, it engages that investigator and is placed in that investigators threat area.
If multiple investigators are at the same location as a ready, unengaged enemy, the lead investigator generally chooses which of those investigators the enemy engages.

Evade
Any time an enemy is evaded (whether by an evade action, or by card ability) the enemy is exhausted and the engagement is broken.

Exhaust
Exhausted hunter enemies and hunter enemies at a location with one or more investigators do not move.
Exhausted enemies do not automatically engage investigators, do not perform attacks of opportunity, and do not attack during the enemy phase.
After an enemy attacks during the enemy phase, exhaust it.
During other attacks, such as attacks of opportunity, enemies do not exhaust.

Fast
Because fast cards do not cost actions to play, They do not provoke attacks of opportunity.
The resource cost of a card being put into play is not paid.

Hunter
Each hunter enemy moves one location toward the nearest investigator during the first step of the enemy phase.

In Player Order
Lead investigator does so first, followed by each other player, one player at a time, in clockwise order around the table.
In player order, each investigator draws the top card of the encounter deck and resolves it.

Massive
A massive enemy is engaged with each investigator at its location.

Player deck
Each players deck cannot include more than two copies (by title) of any given player card.
A card with the exceptional keyword costs twice its printed experience cost to purchase.
A players investigator deck cannot include more than 1 copy (by title) of any given exceptional card.

Skill test
After all active modifiers have been applied, any resultant value below zero is treated as zero.

Surge
After an investigator draws and resolves an encounter card that has the surge keyword, that investigator must draw and resolve an additional card.
If a card with the surge keyword is drawn during setup, the surge keyword does resolve.

Turn order
The investigators, as a group, choose which investigator takes the first turn.