Perpetual Polymorph
By assuming the form of a less powerful creature, you can dramatically extend the duration of your transformations.
Preqrequisite
You know the polymorph spell as a 2nd-level spell or higher.
Benefit
When you cast polymorph on yourself and choose to transform into a predetermined polymorph form from a lower-level list of forms you know, you increase the spell’s duration. If you transform into a form that’s from a list one level lower, the duration increases to 5 minutes/ level (D). If you transform into a form that’s from a list two levels lower, the duration increases to 1 hour/level (D). If you transform into a form that’s from a list three levels lower, the spell’s duration lasts until the next time you regain spell slots.
Source
Interstellar Species pg. 87
ID
7b586d014909d70968819383Preqrequisite
or [{character.spells contains '35c323df4de7c08793e0bccc'}, {character.spells contains '069a1f73cd78a53662486e06'}, {character.spells contains '16d3a4931ba0b6ea0ea706d4'}, {character.spells contains '6b352cc004dcc4e57d6d7d0e'}, {character.spells contains '1bbc08440c61b5f70fd2cd84'}];
