Editing LeviathanTempest:ChapterFour (section)

===== Sidebar: Stacking Multiple Bonuses =====

One thing Leviathans are really good at is enhancing their own abilities through Transformations. It is quite plausible that a Leviathan will have multiple Channels enhancing a trait. When this happens Channels stack in the following way: 

When the Leviathan benefits to a change in the dice roll (such as 9again, 8again, Rote Actions, or automatic Successes), choose one mechanic from each of the Channels.

The Leviathan may only benefit from a single passive increase to any one Attribute, Skill, Armour, or natural weapon. A passive increase is one which occurs automatically with Transformation, such as any of the Attribute boosting Ancestral Channels or Channels that add Sheol to a Skill. If more than one passive Benefit applies use the greatest benefit and ignore all others. For the purposes of this rule a "single benefit" consists of one Channel and any relevant Adaptations of that Channel. 

Benefits to Attributes, Skills, Armour and natural weaponry that require an expenditure of Willpower or Ichor to activate stack with passive benefits. However, only one such benefit may be active for a particular Attribute, Skill, Armour, or weapon at any one time. 

Channels that directly benefit a derived trait such as Speed, Health, or Defence always stack. 

Size from a Channel stacks with the natural increase of Size from Transformation, but two Size boosts from two separate Channels may never be stacked.  

Channels that provide unique effects without modifying the dice roll or the Leviathans traits, such as turning the Leviathan invisible or poisoning anyone struck by a natural weapon, are not covered by the above rules. Generally they can be assumed to stack with anything.