It says I have the following bonuses for my Naga team:
King of Scales
All troops gain +6 Life and +1 Magic for having 4 unique Mist of Scales troops
All troops gain +2 Armor and +3 Attack for having 4 unique Naga troops
This is still only providing "+15 souls" in the final results tally, rather than the presumed +20 Bonus souls or more precisely in my case, it ought to be +30 total.