I've played for ~3 weeks as Vetruvian faction, I'm just guessing, as there's no way to see the opponent's deck and rematch with him, Songhai's the too advantaged faction. Just make ~1/2 your deck a) & the other ~1/2 b) as below,

a) ranged & backstab units/ & Chakri Avatar.

b)+4 Atk/+2 HP, reactivate, Juxtapose, unit teleport spells
and you keep use the game in- built free replace card function to get the combo of a) & b), wins all games easily no matter what.
I personally prefer card games that don't get free card replacement + the art sucks.