How rakan's skills are useful ?

He also heals, charms, and has a knockup.

move forward fast

That's like saying Yi or Olaf only "move fast" with their ults. It also CC's people he runs into.

And yeah, you pretty much ignored his heal and his gapcloser (that also has CC attached to it)

People asked for more fun/ interesting supports, so here is one with assassin level mobility and tank level engage. You will work hard and get results with this champion.

Depending on his AP Ratios, he's like a better version of LeBlanc.

https://s22.postimg.org/84rekvcch/bgti_Rmt.jpg

a heal, 2 shields, aoe knockup, run around and charm people

it depends on teh cooldowns.

ivern low cooldown shield alone is pretty overwhelming lol

He has two charges of lee sin w, and a delayed Malphite ultimate on a basic ability. I think he shall do just fine in terms of strength.

I think they should switch Rakan's W and E

That's a bronze thing called peel, you korean gods wouldn't understand...