This link has all the bonuses you get from elixers being activated. I don't currently have levels 11 and 12, so if people can let me know, I will update this table. It is a Google Sheet so people can easily copy the data into their own spreadsheet.
Very good job Archon ! Thank you very much ! 
ok the level's I can complete for you are below
Offence all L12
Light 20%
Heavy 16%
Phalanx 12%
Cav 12%
Defence
Resistance L11 (the orange one) - Light 16%, Heavy 16%, Phalanx 30% Cavalry 30%
Endurance L12 (light blue) - Light 16%, Heavy 16%, Phalanx 16%, Cav 32%
Crafting L12 (Dark Pink) - Light 20%, Heavy 20%, Phalanx 12%, Cav 12%
Swiftness L12 (green) - Light 40%, Heavy 32%, Phalanx 16%, Cav 12%
I think a few in my team have the L11 ones, I'll ask them
offence Glory L11 - Phalanx + 9.8%
offence strength L11 - Light + 16%
Offence Wrath L11 - Cav + 9.8%
Defense Swiftness L11 - Light +30%, Phalanx + 13.8%, Heavy + 24%, Cav + 9.8%
amm Thank you for good work Archon, but we already have table on our Wiki
https://wiki.plarium.com/index.php?title=Elixirs:SWOE
You will find all information about 4 types of defensive elixirs and 4 types of offensive elixirs.
