Noxus
1,425 XPClear any of these 3 times:
The Master of Shadows2★
The Titan of the Depths2★
The Hand of Noxus2★
Clear this 3 times to unlock:
Daughter of the Void3★
The Collector of Souls3★
The Dragonsire3★The Colossus3.5★
The Ancient Fear3.5★
Foes
When the Foe's units attack, create 2 
Resonating Strikes in the Foe's hand. They cost 0.
Round End: The Foe summons 
Draven if he isn't in play. When Draven attacks, give him +1|+0 and 
Double Attack this round.
Round Start: Give the Foe's strongest unit +2|+0 and 
Overwhelm this round.
Rewards
After a win, press Log a clear and pick your champion; the reward goes where the game puts it (their region's slot first). Or tap an icon to tick a reward by hand.
The wiki lists 7 champion requirements for 8 rewards, so the region for the last step isn't confirmed yet.
- #1 Any champion
Silver Reliquary - #2 Runeterra champion Silver Reliquary
- #3 Targon champion
Gold Vault - #4 Noxus champion
Platinum Vault - #5 Piltover & Zaun champion Platinum Vault
- #6 Shadow Isles champion Platinum Vault
- #7 Shurima champion Platinum Vault
- #8 Not confirmed yet Platinum Vault