Here is the full list of all 11 Raindancer achievements.
Land a Critical Hit on a Target Dummy.
Listen to Gasa.
Complete Raindancer on Story Mode.
Complete Raindancer on Tempest Mode.
Kill 10 fireflies.
Complete Raindancer on Tempest Mode in under 30 minutes.
Defeat Knight Sandir in under 30 seconds.
Defeat Barshka, The Wall in under 45 seconds.
Defeat Malvo, The First Distiller in under 45 seconds.
Defeat Baanda, Queen of All in under 60 seconds.
Defeat The Rain's Shears in under 2 minutes.