Rakan buffs/changes?

Does anyone else think that support tank rakan needs buffs/changes to his abilities? since his abilities do no dmg and he doesn't really feel tanky enough to justify it.

The changes i'd like to see to rakan would be to increase his base dmgs or even make some of his abilities scale with health or resists rather than ap only. there's not rly any good ap tank items besides Roa and abyssal mask that i can think of but no support rly builds that botlane.

Another thing is his Shield dash range and how much it shields for... It doesn't really shield his teammates for much at all and the dash range is VERY small compared to if he were with xayah which with her it's too much so i'd like for the base range without xayah to meet half way between the range with and without xayah.

As for the ult, Since many reworked tanky champs are having damage reduction, Why not give rakan dmg reduction on his ult since he has to run up in the middle of team fights and touches enemy champs with it? something like 5% dmg reduction for each champ charmed by his ult? then at max rank of his ult it gives 10% each champ charmed?

to me rakan just doesn't feel like he's a good tank like the other supports like leona and such. what do you guys think? good ideas for rakan changes?

TL;DR : more damage on his abilities, slightly longer dash range on E without xayah and 5% - 10% damage reduction with each enemy hit with his ult.