Shadow Demon
This demon is a strange Support because this hero does not bring any clear buffs or disables and is extremely difficult to play effectively, unlike Dazzle or Crystal Maiden.
Besides, Ultimate’s ability to Purge through BKB is extremely useful at the present time when Diffusal Blade is heavily nerfed and other items like Book 3 or Nullifier are too expensive.
Bane
Receiving a strong buff in version 7.07, Bane quickly became a top Support with a 64.3% win rate in professional tournaments.
In the later stages, Bane is strong in his Disable ability when this hero can lock up to 2 heroes at the same time with Nightmare and especially his powerful Ultimate disable through BKB.
Disruptor
Disruptor is considered a Russian brand hero when teams from this Eastern European country possess an extremely bloodthirsty playstyle, constantly ganking, and Disruptor is the perfect support hero in capturing and dividing the enemy team.
And even if the gank is not very successful, only with Aghanim’s Scepter, Disruptor can completely change the outcome of the fight when it is difficult for this hero to withstand a large-scale Doom phase and is easily broken by attacks.
Shadow Shaman
Shadow Shaman was buffed in an extremely unreasonable way recently when this hero was given 620 health and 74 damage right from level 1 with an Intel hero, a terrible number.
Besides, Shadow Shaman also possesses a pretty good set of disabling skills with Shackle and Hex as well as the ability to push the house extremely strongly with his Ultimate.
Winter Wyvern
This ice dragon is the strongest Support hero in the 5k and above ranks thanks to his ability to deal quite good physical damage with the Cold Embrace skill, moderate lane control with Arctic Burn and quite powerful Ultimate BKB penetration.
At the present time, the strong return of Carry makes Winter Wyvern even hotter thanks to its good physical damage counter skill set, especially short-handed heroes on BKB.