Add a new Rule titled “Feeding” with the following text:

Once per week, a Lifeform may make a Feeding attempt.  To do so, e rolls DICEX in the GNDT, where X is the number of Lifeforms + 1.  The Lifeform (or the Gene Pool) corresponding to the Yth Row in the GNDT, where Y is the result of the DICEX roll, becomes the target.  If a Lifeform is targeted, the Feeding attempt is known as a Hunt; if the Gene Pool is targeted, the Feeding attempt is known as a Forage.  The procedures for resolving a Feeding attempt are below.  On a successful Feeding attempt, the Feeding lifeform gains 2 Nutrition.  The Feeding Lifeform is responsible for making all changes to the GNDT that result from eir Feeding attempt.

If there is a Rule called “Foraging”, make the following changes to it:
Change the first sentence of Foraging to read “A Foraging Lifeform makes a Foraging check by rolling DICE6 in the GNDT.”  Delete the last sentence of Foraging.  If “Ahunt we go, take 2” passed, delete the last sentence of Foraging.

Then copy the text of Foraging into a new subrule of Feeding called “Foraging”.  Delete the old Rule Foraging.

If there is a Rule called “Hunting”, make the following changes to it:
Delete the first sentence of Hunting.  If “Forage or Perish, take 2” passed, delete the last sentence of Hunting.

Then copy the text of Hunting into a new subrule of Feeding called “Hunting”.  Delete the old Rule Hunting.

Add a new Rule titled “Creature Traits” with the following text:

There exists a wiki page titled “List of Traits” (which is part of the Gamestate) with a list of “Active Traits” and “Inactive Traits”.  The lists contain alphabetically sorted entries of Traits, with the following format:
Trait Name
Cost: Cost to purchase trait
Requirements: Requirements for the Trait.  Unless otherwise stated, if a Lifeform’s value equals or exceeds a listed value, e shall be construed as meeting the requirements for that value.
Effect: Effect of having the trait in eir entry of “The Creature Page”

A Lifeform may, in the place of Evoluting, purchase a Trait in the list of Active Traits by spending an amount equal to the Trait’s Cost and then adding it to eir entry in “The Creature Page”.  A Lifeform may at any time Redeem a Trait by removing it from eir entry in “The Creature Page” and gaining an amount equal to half the Trait’s Cost (all quantities rounded down).  If a Lifeform ever possesses a Trait in eir entry in “The Creature Page” for which e does not meet all the requirements, e must immediately Redeem that Trait.  If a Lifeform possesses multiple such Traits, e may choose in which order e Redeems them (and may stop Redeeming if all eir remaining Traits have their requirements met).

Change the second sentence of the Rule Evolution to read:
“Each lifeform is given one entry on “The Creature Page” which contains the lifeform’s creature name, evolutionary variables currently being tracked, and list of the Traits e possesses.”

Add the following Traits to the list of “Inactive Traits”:
Carnivore
Cost: 40 DNA, 1 Complexity
Requirements: Must not have Herbivore or Omnivore
Effect: The Lifeform may only make Hunting attempts.  That is, when the Lifeform makes a Feeding attempt, e rolls DICEX for target selection, where X is the number of active Lifeforms.  E then counts down to the Yth row in the GNDT (skipping The Gene Pool), where Y is the result of the DICEX roll.

The Lifeform may, when making a Feeding attempt, reroll eir target selection die once.  The Lifeform gains one additional Feeding attempt per week.

Digestion
Cost: 50 DNA, 1 Complexity
Requirements: Body Mass 2
Effect: The Lifeform gains 1 additional Nutrition per successful Hunt.

Efficient Metabolism
Cost: 20 DNA
Requirements: Body Mass 2
Effect: The Lifeform loses one less Nutrition each week due to Body Mass.

Grazer
Cost: 60 DNA, 2 Complexity
Requirements: Body Mass 3, Brain Size 2
Effect: The Lifeform gains +1 on all Foraging checks.  The Lifeform may make one additional Feeding attempt per week.

Herbivore
Cost: 40 DNA, 1 Complexity
Requirements: Must not have Carnivore or Omnivore
Effect: The Lifeform may only make Foraging attempts.  That is, the Lifeform’s Feeding target is always The Gene Pool.

The Lifeform gains +1 on all Foraging checks.  The Lifeform gains one additional Feeding attempt per week.

Hibernation
Cost: 40 DNA, 2 Complexity
Requirements: Unique Ability 2
Effect: If the Lifeform has not Evoluted (or performed an action in the place of an Evolute) today, e may gain 1 Nutrition if e does not Evolute (or perform an action in the place of an Evolute) .

Omnivore
Cost: 40 DNA, 1 Complexity
Requirements: Must not have Carnivore or Herbivore.
Effect: The Lifeform may choose whether to Hunt or Forage when making Feeding attempts.  That is, when making a Feeding attempt, e may choose whether to follow the procedure listed in the first paragraph of Carnivore or Herbivore.

The Lifeform gains one additional Feeding attempt per week.

Stalking
Cost: 60 DNA, 2 Complexity
Requirements: Body Mass 3, Brain Size 2
Effect: Whenever the Lifeform rolls a target selection DICE, e may choose to select a target as if e had obtained a result one higher or one lower than the result of eir roll.  This alteration can wrap (e.g. if the Lifeform rolled X on a DICEX target selection roll, e may choose to target a Lifeform as if e had rolled a 1, X, or X-1).  The Lifeform may make one additional Feeding attempt per week.

Sorry for the long post, but I think that this will provide some direction and allow us to balance the 5 variables.