I haven't been following this topic but
I think they did something wrong to shen

(note: I'm teamed with 2 intermediates so I'm playing against worse average opponents than I normally should, but... that's DAMAGE DEALT. also 7/1/19)
edit: also, they nerfed ali. I've been arguing this whole time that pro alis max heal first and barely use their damage spells early at all. They upped the mana cost of high ranks of heal. It's only a "buff" if the way you play him was inferior pre-patch. RIOT is geniuses because they balance champs to have more than 1 equally-viable strat; their goal is to make early harass ali comparable to max heal ali.