Antimagics & other trickeries

Ethereal Room
Casting Time 1 second
Duration 1 hour/level
Transports caster to an extra-dimensional space. Caster may touch others to bring 1 target/3 levels – magic resistant targets may resist. Every hour that the Ethereal Room is occupied by a sentient being, there is a 1% chance that an Ethereal encounter will occur. The spell leaves a magical anchor point where the spell was cast, and this point is where the caster will be returned at the end of the spell. Casting an Ethereal Room spell while in an Ethereal Room serves to add an hour to its duration. Note that duration applies to the amount of time the Ethereal Room can be inhabited – the room itself is persistent and unique to each caster. The room is a cube, 10' a side/caster level. The caster (and any other targets of caster's choosing) may leave the room before the duration expires.

Hidden Mind
Casting Time 1 minute
Duration 1 hour/level
Caster does not register as sentient, intelligent, conscious, or possessing an identity for purposes of senses and detections that discriminate such points of perception. Empathy, ESP, and mind-affecting spells/abilities cannot target the caster of Hidden Mind.

Hindrance, Countercast, Foilspell
Casting Time 1 second
Range 20' + 10'/level
Duration 1 round/3 levels
Target saves or is at -1 to hit & damage, armor class is worsened one step, and attempts to cast spells fail.

Pact
Casting Time 1 minute
Duration 1 week/level
This spell targets at least two individuals – the caster may include an additional target for each level above the second. The caster need not necessarily be one of the targets. Unwilling targets may save to not be bound by the pact. It enforces an agreement between the targets. Either party that breaks the terms of the agreement suffers a negative modifier all rolls made for a full month after the pact is broken. This modifier is -1/3 levels the caster has attained.

Suppress Magic
Casting Time 1 minute
Range 10'/level
Duration 1 min/level
Target spell or magical effect must resist or be suppressed and inactive for duration of this spell. Resistance is based on caster level and the target's level. The spell has a 50% base chance of success, modified by +5% per level if the caster's level is higher than the target's, and -5% per level if the opposite is true.

Symbol/Ward of Exclusion (Minor)
Casting Time S: 1 hr/lvl, W: 1 min/lvl
AOE S: 30'R/level, W: 10'R/level
Duration S: Permanent, W: 1 hour/level
All magic items brought into AOE by anyone other than caster must resist or have their powers suppressed while in the AOE. All spells cast by anyone other than the caster of the Symbol or Ward (in AOE) must save vs. spells or the spell fails and is wasted.