Here is the full list of all 41 Nightbanes achievements.
Reach level 2
Unlock region Dark Forest
Unlock region "Underground Sewers"
Unlock region "Oldtown"
Defeat Bone Lord
Defeat natalia
Defeat Zlatan
Defeat Grandmaster Goku
Complete set "Base"
Complete set "Oldtown"
Reach level 5
Reach level 10
Reach level 20
Reach level 30
Reach level 40
Reach level 50
Reach 2000 ELO
Reach 2500 ELO
Reach 2750 ELO
Reach 3000 ELO
Receive card "Firestorm Phoenix"
Receive card "Shockwave"
Receive card "Childe"
Achieve glorified with Gravekeeper Guild
Achieve glorified with Children of Gaia
Achieve glorified with Mirrorbreakers
Achieve glorified with Union of the Snake
Defeat raid boss Primordial Dragon
Defeat raid boss Scintilla the Deathwalker
Unlock region "Abandoned industrial complex"
Defeat Professor Pirkman
Receive card "Plague overlord"
Defeat raid boss "Darkcrawler titan"
Unlock region "Infernal planes"
Defeat raid boss "Lady McCloud"
Defeat Alithia the Warlock Queen
Complete set "Hell on Earth"
Complete set "Toxicity"
Complete set "Portals"
Receive card "Vilevere"
Achieve glorified with Cult of Nebranor