Shapeshift

Time: Action Target: Self
Effect: Buff

Flavor: Choose one creature from the Creature List that has the Easy or Moderate Creature Tag. If the creature has Upgrades, also choose one Upgrade. You can optionally apply this Upgrade when you transform.

While you have this Ability you also have the "Shapeshifter" Creature Tag, giving you a Weakness to silver.

When this Ability takes effect, you gain two stacks of Persistent Polyformed. As an Action, you can clear all stacks of Polyformed gained from this Ability, returning to your original form.

For reference:

Polyformed

Before reaching 2 Stacks of this Condition, there is no effect.
Once you reach 2 Stacks, you transform into a new creature as determined by the source of the last Stack of this Condition. Once transformed, you will remain transformed until you lose all Stacks of this Condition.

While transformed:

You must use your new form's Creature Sheet as your Character Sheet (replacing all your Stats, Skills, Abilities, etc.) with exception of the following:
- Keep your Shield, Health, and Vitality.
- You lose Concentration. All other Conditions are temporarily suspended and will return when this Condition ends. Any Conditions you have while transformed are cleared.
- Keep your Social Stats and Social Abilities (but not your Social Skills.)
- Keep your general mental faculties, though you will feel a subtle draw toward the creature's natural behaviors, including desires and fears.
Whenever you take Damage, reduce the Damage by 1, apply it, then make a Tuning Test using your true form's Tuning Stat (even if you reduce the Damage to 0):
- Willingly Polyformed:
  - You must Pass the Tuning Test or lose 1 Stack of this Condition.
- Unwillingly Polyformed:
  - You must Pass the Tuning Test to remove 1 Stacks of this Condition.

Upgrades:

Copying.
- When transforming, you can match the exact look of any creature matching your Flavor(s).
- When transforming, you can touch a creature to transform into that creature with the following stipulations:
  - You gain one Upgrade of that creature. If the target is instead an Adventurer, you can gain one of their Trait Abilities instead.
  - If the target creature is Hard, your Stacks of Polyformed are Fleeting instead of Persistent. When losing a stack of Polyformed, you can use a Reaction to keep it.
  - If the target creature is Legendary, your stacks of Polyformed are Fleeting instead of Persistent (and you cannot keep them with a Reaction.)
  - When transforming into a Hard or Legendary creature, you can choose to take on their exact look while not gaining their capabilities. To do so, you must be able to chooses an Easy or Moderate creature that matches the target creature's Size and form. You will then use that Creature Sheet instead. For example, you could use the Commoner Creature Sheet when transforming into a human Arch Wizard.
Expanded.
- Gain both of the following or one of the following twice:
  - Gain another Flavor with an Upgrade.
  - Gain another Upgrade for an existing Flavor.
- Note: Each time you transform, you can still only choose one Creature Sheet with up to one Upgrade.
Partial.
- When transforming you can, optionally:
  - Keep your Language Skills.
  - Keep one of your Exploration Stats and/or its relevant Skills.
  - Keep up to three Abilities of your choice.
  - Apply one Upgrade from any of your chosen Shapeshift Flavors, regardless of your actual form.
- Note: When partially transforming to retain Abilities, Skills or to gain creature Upgrades, if your choice would require noticeable physical alterations, you may not fully pass as a genuine instance of that creature. For example, if you keep your Natural Weapons Trait Ability, keeping your claws might make you look like a monstrous Horse with claws.
- You can choose to not transform, gaining one Stack of Polyformed instead of two. When you do you can:
  - Gain an Upgrade from your chosen Flavor.
  - Gain a Movement Style from your chosen Flavor.
  - Gain Natural Weapons, provided your chosen Flavor(s) would have them. (You gain no Upgrades for Natural Weapons.)
Powerful.
- Choose a previous Flavor choice to lose.
- Gain a Flavor. You can choose a Hard creature instead of a Easy or Moderate creature. You can still choose one Upgrade from your chosen Hard creature.
- When transforming into the Hard creature:
  - Your stacks of Polyformed are Fleeting instead of Persistent.
Swarm.
- If a chosen creature Flavors has the Swarm tag, you can now transform into Swarm of that creature. While transformed:
  - You count as a Massive(8u) Swarm while at 2 Stacks of Polyformed and a Huge(4u) Swarm wile at 1 Stack of Polyformed.
  - You have a Resistance to all Solid Damage.
  - You have a Weakness to all Damage from a Shape covering at least half your Swarm area.
Versatile.
- You can turn into any valid Flavor that you did not choose. You gain no Upgrades for the chosen form, but can still approximate any look as if you did have those Upgrades. For example, you could transform into a Bird and look like an owl without the "Sneaky" Upgrade that recommended for owls.