I've been looking at my own demiplane and its very costly to expand so I was thinking if you were a mythic character (which this one is) it might be possible to add mythic effects to make it easier and I'd appreciate some feedback on whether this is enough/too powerful? Mythic additions are in bold at the end of the base spell description. However its basically casting it as a mythic spell doubles the size of the plane you create, when augmented you can either make it permanent for free or at double the gold cost (plus possibly some XP not sure) you cam make it grow at a rate of 1 foot per tier per year e.g. at tier 10 it will grow 10 feet in all directions (20 feet larger across as you have two sides A to AAA to AAAAA) every year but you need to be 6th tier or higher to augment it.
Create Demiplane Greater
School
Conjuration (Creation).
Level
Cleric/Oracle 9, Sorcerer/Wizard 9, Witch 9.
Casting Time
6 hours.
Components
V, S, F (A forked metal rod worth at least 500 GP).
Effect
Extradimensional plane up to 20 10' cubes per level.
Description
This spell functions as create demiplane, except the area is larger and you can add more features to the plane. You can use this spell to expand a demiplane you created with lesser create demiplane or create demiplane (you do not need to create an entirely new plane using this spell), in which case it has a duration of 1 day/level. Alternatively, when cast within your demiplane, you may add to your demiplane (or remove from it) one of the following features (or any of the features described in create demiplane) with each casting of the spell, in which case it has an instantaneous duration.
Energy: Your plane gains the (minor) negative- or positive- dominant energy trait. A plane cannot have both the negative-dominant and positive-dominant energy traits.
Magic: Your plane gains the dead magic, enhanced magic, impeded magic, or wild magic planar trait. If you selected dead magic, you are trapped within your plane unless it has a permanent planar portal (such as the portal feature, below). If you selected enhanced or impeded magic, choose one type of magic to be enhanced or impeded, such as “effects with the fire descriptor or that manipulate fire” or “death spells and spells from the Death or Repose domains.” A plane cannot be enhanced and impeded for the same kinds of spells.
Morphic: You may use move earth at will in your demiplane at one-tenth of the spell’s normal casting time, and can reshape normal plants in the same manner (such as by twisting trees into a fence or humanlike shapes). You are even able to affect rock formations with this ability, though the casting time for this is only half normal.
Portal: Your demiplane gains a permanent gate to one location on another plane, which can only be used for planar travel. This location must be very familiar to you. This gate is always open and usable from both sides, but you can secure it using normal means (such as by building a door around it).
Time: By default, time passes at the normal rate in your demiplane. By selecting this feature, you may make your plane have the erratic time, flowing time (half or double normal time), or timeless trait (see Time, GameMastery Guide 185).
You can make this spell permanent with the permanency spell, at a cost of 22,500 gp. If you have cast create greater demiplane multiple times to enlarge the demiplane, each casting’s area requires its own permanency spell.
This spell creates 40 10' cubes per level rather than 20. Augmented (6th) If you expend two uses of mythic power you can choose one of two options. The first option is to eliminate the gold cost of making the demiplane permanent. The second option is to make the demiplane grow at a rate of 1 foot per tier (in all directions i.e up, down, and to all sides creating appropriate material for that type of plain e.g. soil, rock and precious metals below ground, air above etc) per year however taking this option DOUBLES the gold cost to make the spell permanent.
