No still not worth.
Tish is OP --> 50% TA for 5T with 3T CD and has the same passive like Titania
Lugh is OP --> High BG, nuke spam and debuff
Iris is OP --> Strong nuke, 30% ele rst and her BG is nice too
Take is OP --> Guranteed TA and fixed echo burst damage
No need to talk about Michael AW because she is the core of core for light next year.
Tbh you maybe want to MT Baal U especially for Tower.