Any way to get a bloodline arcana without Sorcerer dip?

[Jen the GM]

I'm trying to build a winter witch and I need one of the bloodline arcanas (changing energy types to [cold] without using a metamagic), and I was wondering if there was a way for me to get that bloodline arcana (it's from Marid) without losing witch casting levels.

[Umbral Reaver]

Nope.

[Canoy]

A level of Wizard with the Admixture Evocation subschool might do the trick?

Versatile Evocation (Su) wrote:

When you cast an evocation spell that does acid, cold, electricity, or fire damage, you may change the damage dealt to one of the other four energy types. This changes the descriptor of the spell to match the new energy type. Any non-damaging effects remain unchanged unless the new energy type invalidates them (an ice storm that deals fire damage might still provide a penalty on Perception checks due to smoke, but it would not create difficult terrain). Such effects are subject to GM discretion. You can use this ability a number of times per day equal to 3 + your Intelligence modifier.

[Sangalor]

@Canoy: The OP does not want to lose a caster level. So this is not an option for him, he could directly multiclass with the sorcerer in question then.

@Jen: No, there is no way to get bloodline arcanas. A metamagic rod would probably be the best way for you then. Or simply getting the metamagic, heighten and preferred spell feats to convert spontaneously.