Ive seen many courses and tier list around support heroes and they dont put abaddon in there. When i play with him it feels like a good support with sup build. Then why so underrated that it didnt even made d tier like he dosent exist at all as a support. Im talkin about both pos 4 & 5.
I think its because of the meta, abaddon is a supp that is meh in lane and have no mid game presence, his saves are not that great compared to the other heroes and he doesnt sets up, he is also a melee which in a supps case will put him in a disadvantage cos he can get kited around easily. rn the meta is not for him but im sure a day will come