Suggestion for Janna Lulu change

shield/heal support excels in current meta (partly due to ardent censor), but in solo-que experience, Janna and Lulu (maybe Soraka) get ban priority while other shield/heal support don't.

Biggest problem with Janna and Lulu, is giving ally champion shield AND at the same time, giving extra damage (classic combination is Kog/Lulu...)

So I propose change/rework for Janna and Lulu.

Can it be so that Janna/Lulu players have to CHOOSE to give extra damage OR shield with single ability? If giving shield and extra damage would be done over 2 abilities, that would also reduce problem

For ex.

Janna: move giving extra damage to "w - Zephyr" where new "w - Zephyr" would give extra damage to ally champion if cast on ally champion and slow if cast on enemy champion. new "e" would lose giving extra damage to ally champion but still giving shield to ally champion

lulu: new "w" pixie can jump on to ally champion, while new "e" pixie would not jump on to ally champion (just giving shield)

Or can it be so that shield duration would be flat 3, while empowering ally with extra damage (pixie/extra AD) who are shielded for duration of 1.5 second?