Cerebria: The Inside World

Frontier control is determined by the Frontier's Triad (the Frontier slot plus the two adjacent slots): if only one team has Emotions there they control it, otherwise add each team's Emotion Intensities (the highest-numbered filled Essence space on each card) in the triad and the higher total controls; tied or empty = no control (pages 12–13).

An Emotion on a Frontier can be blocked from influencing a particular Realm if an opposing Emotion occupies the adjacent Realm slot (the blocked Emotion still affects its Frontier and the other adjacent Realm); Realms are scored by adding Intensities of unblocked Emotion slots plus any Fortress bonus (pages 12–13).

Absorb gives a base of 2 Willpower plus +1 for each adjacent Frontier your team controls (and any Emotion effects); you then take the Sphere's optional bonus, and if the Sphere becomes empty you resolve a Revelation and then rotate the Origin one step clockwise (pages 22–23).

You may Fortify only in a Realm your opponent does not control and only if the Fortress location is empty (placing a Minor Fragment and +1 Intensity); Exalt upgrades your existing Minor to a Major by spending 1 Ambition (and the Fortify cost), while Raze lets you, for a Willpower + Ambition cost, remove or downgrade an opponent's Fragment and may be used even in an opponent-controlled Realm and grants an extra Action (page 17).

To Empower you must be adjacent to the Mild Emotion, it must meet its Empower threshold of Essence, and you spend 3 Willpower to replace it with its Strong counterpart while transferring Essence (tokens other than Essence are discarded); upgrades like Channeled Power let you spend 1 Ambition to add 1 Essence before empowering (page 18).

Ambition is a shared pool (max 3) that starts empty; you commonly gain Ambition by flipping a face-down Ambition token instead of drawing 2 Emotion cards at end of your turn, and spending Ambition flips a token to the spent side; Ambition can pay for powerful Abilities such as adding a Vibe token, rotating the Origin, or buying an Additional Action, with each Ambition Ability usable only once per turn (page 21).