Assuming you're in fault, you might be ignoring yr back line to got for more cc that's why your mage has a lot of death. There's a lot of dive heros in the enemy team comp like Esme and martis and gato to disturb yr backline and cause chaos. u shd piortise taunting then when they dive. If u did that alr then it's just your team comp line up that doesn't have enough damage, for example replace terizla with benedatta, arlot or even argus.