Fairy Tail Episode 169 -

Wendy demonstrates immense character progression, evolving from a shy "healer" into a combatant capable of standing against a superior opponent.

The latter half of the episode introduces the final match of Day Three: a duel between two young sky mages. Fairy Tail Episode 169

The episode introduces the mystery of Lumen Histoire, which Ivan calls "Fairy Tail's darkness". Wendy demonstrates immense character progression

See the highlights of Laxus's victory and the start of the sky duel in this reaction summary: Fairy Tail Episode 169