Purchase all the items from Vena's shop (Chapter 7 and later)

Witness Vassago's hidden move

Use Vena's wind-up bunny to defeat a boss

Successfully trigger Déjà Vu's rewind effect

Obtain a rare shard via materials conversion

Defeat 1000 enemies

Reach level 25 with 3 Legends

Visit a familiar place while in the possession of a certain item...

Talk to NPCs around towns and cities

Achieve 50,000 points in Rabi Smash

Discover Rabi Smash

Initiate crafting of consumables or sigils 5 times

Find Vena's podium