Any Knacks the Lunar knows relating to their spirit shape are automatically in play when the Lunar assumes it without Essence or Willpower cost.
One of the greatest advantages of Knacks is they go on until the Lunars decide to reverse them. The Lunar can simply have a Knack and live with it as a personal enhancement to their capabilities. In fact they often gain reputations and are recognised by their unique combinations of Knacks they leave in effect.
'The Tell.'
The use of Knacks is mosst obviously being able to use the beneficial traits of an animal without having to assume it's form. Knacks allow selected traits to be used in any form whether human or animal. They can stack Knacks using a variety of them at any time and don't suffer drawbacks from the creature they're based on. For instance Man O' War Touch is very useful but a jellyfish isn't going to live long on land.
