The Path Technique "Illusory Arcana" should provide access to an additional illusion or enchantment spell from wizard/sorcerer/nightblade list. I do not see hideous laughter as a choice in second level. Not sure if other spells are not available, just tried with this one.
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"All Spells" is a moving target. In fact, providing all spells would be a several hour endeavor. I've added all the CRB spells that are allowed, further books will be based upon separate trackers - the source book requested. The ability now states which spells are available by source.