After being confronted by Yuuto, the Twin Star Exorcists are desperate to get stronger in preparation for future battles, but Benio's old master Subaru has a different kind of training in mind.
It's a talisman to restrain power. 
I placed an enchantment on it.
...إنّها تميمة لكبح تلك القوة
Ein Talisman,
der die Kraft unterdrückt.
J’ai appliqué sur toi un revêtement
pour réprimer tes pouvoirs.
È un talismano per sigillare quel potere.
Um talismã para conter o poder.
Талисман для сдерживания силы. 
Я его усилила.