First up: Zoanthrope / Neurothrope rules:
Question: Can a Zoanthrope unit that contains a Neurothrope potentially cast warp blast twice, i.e. once normally and once from the additional charges generated from the Spirit Leech.
As far as I can tell, the following rule from the rule book would prevent them from Warp Blasting - Spirit Leeching - Warp blasting.
No unit can attempt to manifest the same psychic power more than once per phase
I could have sworn the spirit leech rule was worded "can only be used to manifest another
warp blast", but hey, here I am. Thoughts / input please.