| Melissa Litwin |
"Stubborn (1 RP): Prerequisites: None; Benefit: Members of this race gain a +2 racial bonus on Will saving throws to resist spells and spell-like abilities of the enchantment (charm) and enchantment (compulsion) subschools. In addition, if a member of this race fails such a save, it receives another save 1 round later to prematurely end the effect (assuming the spell or spell-like ability has a duration greater than 1 round). This second save is made at the same DC as the first. If the member of the race has a similar ability from another source (such as a rogue’s slippery mind class feature), it can only use one of these abilities per round, but can try one on the second round it the first reroll ability fails."
1) It costs 1 RP for +2 on saves versus very common, very powerful effects. This aspect is about on par with Plagueborn (+2 vs. disease, ingested poison, sicken, and nauseate) and should be the whole of the ability for 1 RP.
2) It's two abilities for the very low cost of one. It really should be just the save bonuses, with the Slippery Mind aspect being a 1-2 RP cost ability with Stubborn as a pre-req. As it is, it's an extremely cheap way for a race to gain a level 10 class ability.
My suggestion: Have Stubborn remain at 1 RP cost. It only gives the +2 on saves against compulsions and charms. Make a new ability called Extra Stubborn at 2 RP cost that has Stubborn as a prerequisite and gives the reroll ability. That makes the whole package cost 3 RP, which seems about right.