Neither of these cultures was particularly pantheistic. They were both fairly polytheistic. The Orlanthi (re. current revision) appear to be para-polytheistic, almost moving towards monotheism, given how every deity seems to be folding into "Orlanth the Y" and "Ernalda the X". Eventually, they'll merge into "Orlalda". However, the possibility of religious warfare within whatever structure the Orlanthi already have does exist, considering Lokamaydon's antics.
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