Infernape's Scarf set - whether you're playing it fully physical, fully special or mixed - is just as effective as it has always been at revenge killing. What it has over Terrakion and Landorus-I in this regard is 1) lack of a weakness to Bullet Punch / Ice Shard and 2) brutal efficiency against Sun teams, outspeeding neutral +2 Venusaur. Fire STAB is awesome, and the Fighting STAB is just as good. The only losing matchup for Infernape is against Scarf Lati@s, as it can U-Turn out of just about anything. Unfortunately, it has a bit of 4MSS - You can't run dual STAB, Mach Punch, HP Ice, Stone Edge and U-Turn all in one set. Still, it's an effective revenge killer / scout who has enough power to clean up a weakened team.
4MSS has never stopped it before; regardless that's where team support takes action. Overall still a good Pokemon, that isn't seeing it's deserved usage. Anyone have a few Pokemon that they want to point the finger to? lol Besides Tornadus-T, of course.