Every patch there are bullshit S tier heroes, I don’t even hate this patch but it’s just been going for too long. Imo though Antimage, Spectre and Tinker make for the most stressful Dota games if they’re over buffed. Tinker especially getting perma hexed and him spamming pewpewpew as you get lasered to death
Heroes that require very specific counters (tinker), or heroes that are overbuffed to the point that even their counters don’t do much against them (current spirit breaker, lina a couple patches ago).