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During its ongoing all sky survey comma eROSITA is rapidly uncovering an increasing number of transients associated with galaxy nuclei which show no obvious signatures of prior AGN activity. A large fraction of these events is expected to be associated with TDEs. However comma already the first results from dedicated follow-up campaigns of eROSITA-discovered events demonstrate that the reality is much more diverse and the deviations from the standard scenario of TDEs are common. Here comma we ask for XMM-Newton ToO observations for 10 new nuclear non-AGN transients that will be discovered by eROSITA during AO20. The XMM data will provide vital information on the spectral and temporal evolution of this novel population of non-AGN nuclear transients and help deciphering their nature.