User blog comment:CrimsonWarden/Time Stop and Time Stop Countermeasures/@comment-26952857-20160910005822/@comment-29248623-20160910045625

From your exchanges on this thread, we can at least conclude that Shalltear is capable in the regards of counter measures towards time magic. She has the skills for it but she's not really experienced enough to properly make use of it in certain cirmcumstances.