Scarf Typhlosion is an inferior set to Specs, and after Stealth Rock Scarf Typlosion doesn't OHKO Virizion: 252 SpA Typhlosion Eruption (112 BP) vs. 0 HP / 0 SpD Virizion: 260-308 (80.4 - 95.3%).
Virizion OHKOes Golbat after Stealth Rock if it's running Life Orb (Lum Berry's usually better, but Life Orb is still viable, as it gives you a good chance to OHKO defensive Venusaur after Stealth Rock with Zen Headbutt).
+2 252 Atk Life Orb Virizion Stone Edge vs. 248 HP / 252+ Def Eviolite Golbat: 265-315 (75 - 89.2%) -- guaranteed OHKO after Stealth Rock
The fact that a Pokémon has checks and counters low down in the VR doesn't make it itself any less viable. Almomola gets wrecked by Sceptile, Ludicolo and Lilligant (the latter using it as set up fodder), which are all C Rank Pokémon. Should it be bumped down?
Virizion OHKOes Golbat after Stealth Rock if it's running Life Orb (Lum Berry's usually better, but Life Orb is still viable, as it gives you a good chance to OHKO defensive Venusaur after Stealth Rock with Zen Headbutt).
+2 252 Atk Life Orb Virizion Stone Edge vs. 248 HP / 252+ Def Eviolite Golbat: 265-315 (75 - 89.2%) -- guaranteed OHKO after Stealth Rock
The fact that a Pokémon has checks and counters low down in the VR doesn't make it itself any less viable. Almomola gets wrecked by Sceptile, Ludicolo and Lilligant (the latter using it as set up fodder), which are all C Rank Pokémon. Should it be bumped down?