Basic lightning magic.
Lightning Magic (Shock):
Shocks the opponent. Shocked units discharge electricity when sent flying, damaging units around them and rendering them shocked as well.
Thunder can be obtained from the following sources:
Known at base for Dimitri, Dorothea, Felix, Ferdinand, Hilda, Holst, Jeralt, Jeritza
Monk mastery level 3 for Manuela, Rodrigue
Mage mastery level 1 for Bernadetta, Byleth, Mercedes
Dark Mage mastery level 1 for Gatekeeper
This page was made based on data that is available in the Three Hopes demo. It will be updated after the full game comes out.