You may select from the list of 1-point evolutions.
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EvolvedCompanion
Choose one animal focus. When you apply that animal focus to your animal companion, the benefits increase by one step. For example, if you are 6th level and choose the bear animal focus, then when you apply the animal focus to your animal companion, it gains a +4 inherent bonus to Constitution instead of +2.
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FavoredAnimalFocusSelection
Once per round when this animal companion hits an opponent with a charge attack, it can initiate a bull rush against that target as a free action.
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ForcefulCharge
If the animal companion pushes the target at least 10 feet as a result of Forceful Charge, it can attempt a trip combat maneuver check against the target as a free action. This trip combat maneuver provokes attacks of opportunity as normal.
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ImprovedForcefulCharge
Choose one of the creatures natural attack forms (not an unarmed strike). The damage for this natural attack increases by one step on the following list, as if the creatures size had increased by one category. Damage dice increase as follows: 1d2, 1d3, 1d4, 1d6, 1d8, 2d6, 3d6, 4d6, 6d6, 8d6, 12d6. This feat can be taken multiple times for a different natural attack.
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ImprovedNaturalAttack
When you have this ability toggled and that companion creature has this feat, you can cast a spell on yourself and divide the duration evenly between yourself and the companion creature. You can use this feat only on spells with a duration of at least 2 rounds. For example, you could cast bulls strength on yourself, and instead of the spell lasting 1 minute per level on yourself, it lasts 5 rounds per level on yourself and 5 rounds per level on your companion.
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ImprovedSpellShare
When you use your animal focus class feature, you can choose any of the following new aspects: Air, Chaotic, Cold, Earth, Evil, Fire, Good, Lawful, Shadow, Water.
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PlanarFocusFeature
At the start of the day, you can choose to commune with a single shaman spirit. Once during the next 24 hours, you can spend a standard action to grant your animal companion or familiar that shaman spirits spirit animal ability for 1 minute per level in the class that grants your animal companion or familiar.
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SpiritsGift
Select one animal aspect from the list presented in the hunter animal focus class feature. Your animal companion gains the benefits of the selected animal aspect, treating its Hit Dice as its effective hunter level for this ability.
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TotemBeastSelection
Your animal companion or familiars type changes to undead. The creature gains fast healing 5 as well as your vampire or dhampir weaknesses.
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VampiricCompanion