Do not shoot Moji when she is using her Magic Barrier. If you did, retreat because you are less likely to win the 1v1 fight with the Moji as she has higher DPS and burst damage.
Talus is a champion with high burst damage and excels in a 1v1 against any unsuspecting enemy backlines. However he is vulnerable to any types of CC whether it is stuns, slows or cripples. If you are hit by these, then you're in deep trouble.