  SMC X-2 exhibits X-ray outburst behaviour that makes it one of the most
luminous X-ray sources in the Small Magellanic Cloud. In the last decade it has
undergone two such massive outbursts - in 2015 and 2022. The first outburst is
well reported in the literature, but the 2022 event has yet to be fully
described and discussed. That is the goal of this paper. In particular, the
post-peak characteristics of the two events are compared. This reveals clear
similarities in decay profiles, believed to be related to different accretion
mechanisms occurring at different times as the outbursts evolve. The H{\alpha}
emission line indicates that the Be disc undergoes complex structural
variability, with evidence of warping as a result of its interaction with the
neutron star. The detailed observations reported here will be important for
modelling such interactions in this kind of binary systems.
