Slattern Gigatons feats are basically nothing compare to most of Kaijus that i were mention above , FW kaijus are mostly more or less than 5.88 Gigatons due to fight on par, take hit from FW Godzilla who can did more or less than that, Legendary kaijus are at least 3.6 Teratons to 28 Teratons , for the like of MUTOs can easily stab through Legendary Godzilla skin, and manage to draw blood from that, and the same as Shinomura, who also survived the impact of an asteroid in the Permian period and fight on par with Legendary Godzilla , GTS kaijus can deal 47 Gigatons by fighting Zilla Jr, tanking his atomic breath and show no harm ,and for Kiryu saga Godzilla and Kiryu , Godzilla has take on Absolute Zero Cannon and show no harm, not to mention that he can damaged Kiryu , who stand close to his own Absolute Zero Cannon , BTW , Kiryu can also pierce through Godzilla's skin by his own physical attack and weapons, and other energy base attack differrent from Absolute Zero Cannon, while Slattern is heavily injured after Striker Eureka 's self destruct,which yeld 1.2 Teratons, so i don't see how Slattern can win against any of them ,