If a character has access to to the Shadowbound Corruption power that
Once per day, you can use shadow conjuration as a spell-like ability, but only to emulate a sorcerer/wizard spell 1 spell level lower than your manifestation level. Your caster level is equal to your character level. The illusion is 10% real + another 10% real for every manifestation level you have beyond 2nd.
Does reaching Manifestation level 3, which would allow the user to cast a second level arcane spell once per day qualify them for prestige classes or feats that require the ability to cast 2nd level arcane spells?
The example in this case would be the Cerebremancer psionic prestige class.
Requirements: Able to cast 2nd level arcane spells, Able to manifest 2nd level psionic powers, 3 ranks each of Knowledge Arcana and Knowledge Psionics
No, because you are not casting but emulating.