id dont know if there is a thread about this

Level 2 - Blast shot
Level 3 - Avian Scream
Level 4 - Thorn Root
Level 6 - Focus
Level 8- Meditation
Level 10 - Restore
Level 12 - Evade
Level 14 - Armor Break
Level 16 - Shattering Scream
Level 18 - Repulse shot
Level 20 - Blinding shot
Level 22 - Thorn wall

Shattering + blast shot = Combo