I wanted to create a oracle that has access to multiple mysteries and this is what I came up with. It is heavily based on the crossblooded sorcerer with a bit of dual-cursed oracle thrown in.
A twice-blessed oracle combines the powers of two distinct mysteries.
A twice-blessed oracle sorcerer selects two different mysteries. The oracle may gain access to the skills, spells, revelations she is bless with, but with extra blessings comes extra curses and less choice in her spells.
Oracle’s Curse
A twice-blessed oracle must choose two curses at 1st level. One of these curses (oracle’s choice) never changes its abilities as the oracle gains levels; for example, an oracle with clouded vision never gains darkvision 60 feet, blindsense, or blindsight. The other curse comes with its normal benefits.
Class Skill
A twice-blessed oracle receives the bonus class skill from both of her mysteries. If these are the same skill, this does not grant any additional benefit.
Bonus Spells
A twice-blessed oracle may select her bonus spells from either of her mysteries. The oracle also has the choice to learn a lower-level bonus spell she did not choose in place of the higher-level bonus spell she would normally gain. Lower-level bonus spells learned this way always use the spell level that they would be if the oracle had learned them with the appropriate bonus spell.
Revelations
When a twice-blessed oracle gains a new revelation she can choose to gain a revelation from either of her mysteries.
Final Revelation
Upon achieving 20th level. You gain the final revelation of both of your mysteries. If your mysteries final revelations are incompatible choose one final revelation to gain and gain a bonus revelation from your other mystery.
The twice-blessed oracle loses the revelation gained at 19th level in preparation for their final revelation
Drawbacks
A twice-blessed oracle has one fewer spell known at each level (including orisons) than is presented on Table: Oracle Spells Known.
Furthermore, the conflicting blessings and curses level the twice-blessed oracle with less ability to resist additional curses. A twice-blessed oracle always takes -2 penalty on saves against curse effects.
Recommended Mysteries: Any.
Notes:
Not as concerned with final revelation int terms of game balance as games rarely get to 19th/20th level but want to do something beside choose one of the two final revelations. But if someone has an alternative that works better I would be interested.
I am a bit concerned that the crossblooded drawback isn't as significant for an oracle due to gaining two spells known automatically when they gain a spell level in addition to the spells known table. Where a sorcerer would only be able to use the spell slots for meta-magic until they gained another level. My other thought for a drawback was to remove cure/inflict and mystery bonus spells but add the mystery spells to the oracles class list.
I would appreciate any thoughts or suggestions.