Why Forge cleric does not gain martial weapon proficiency, but is able to use Blessing of the Forge on a martial weapon?

Druid’s Wild Shape, it says you “retain any abilities given by your class/race” : could I still use psionic powers?

Which attribute is used for the banshee’s corrupting touch?

Mental Prison: can I use Dimension Door to avoid the psychic damage?

If a lvl 11 PC gets a sidekick, it would make sense for the sidekick to be lvl 11 right?