if buff to char 2 or more auras which increases the same parameter, their numbers are not summed up but multiplied
TrinityCore
Here Screenshots
https://yadi.sk/i/wPUDM424nLXB8
https://yadi.sk/i/wtR2vnKinLXBH
https://yadi.sk/i/F9RZRp0ZnLXBR
https://yadi.sk/i/D6hte6yHnLXBU
https://yadi.sk/i/G4oQ5ppAnLXBm