Lowest hd outsider access to level 2 cleric/paladin spells?

[RoboEmperor]

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[Thurbane]

Complete list of Innate Spellcasting? [3.0/3.5/PF] (http://www.giantitp.com/forums/showthread.php?136021)


Artaaglith (Ghostwalk, CR 6, 5HD)
Monster of Legend Template (MM2): you can literally put it on a 1HD eligible creature if you want. CR +2

[ATHATH]

Awesome. You sir, have been instrumental in creating my new main character. I thank you :)
"Main" character?

[Yogibear41]

The Orc Plague Speaker form MM IV is technically an outsider that casts as a 5th level cleric, even though it has 5 cleric levels, you can still summon it using certain summoning abilities, so there is that...