In a 1v1 situation Pip will definitely fail without the proper damage to counter Talus. Use his Weightless buff (as of OB62) to use mobility against Talus, and finish him off before he has time to lock onto you again.
Evie's ultimate slows and cripples enemies, soar towards the enemy's spawn and try to catch their tanks and healers in the Ice Storm, it can seriously delay them and give your team precious seconds to secure the objective!
It's tempting to get deft hands when you know you'll have difficulty with flanks, but you should get your reload speed from your loadout instead. This will allow you to get cauterize so you can keep down the enemy frontline and help your tank further