Wow... I really cant understand whether you are trolling or serious. Medium atk increase that is unique to this hime only (in SR tier) and stacks together with all other atk buffs on entire party, combined with dmg output of weaker SSR hime... Yeah, sure, its garbage, throw it away for some R-tier piece of trash.
And "garbage for any non-fire team" is not an argument: 90% of all hime across all tiers and elements are "garbage to non-theirelement team"