Does Dodrio get Drill Liner?
Fearow just became a serious threat in the lower tiers o:
CB Fearow 85 BP Ground Psychical move vs. SD Mawile - 89.5% - 105.9%
vs. Wall Probopass - 106.2% - 125.9%
vs. Physical Wall Steelix w/ Sniper boosted Critical Hit - 129.4% - 152.5%
vs. Tank Registeel w/ Sniper boosted Critical Hit - 138.5% - 163.2%
vs. Tank Regirock w/ Sniper boosted Critical Hit - 107.7% - 126.9%
Success...
For a start Drill Liner is an 80 BP, 95% accuracy move according to Serebii.
Secondly why on earth would you assume a critical hit.. the odds are 12.5% with Drill Liner, so basically a little over 1 in 10. Also being stuck in a choiced ground move begs for a levitator/flying type to switch in and set up.
CB Drill Liner vs.
252 HP / 252 SpD Sassy Steelix - 31.6% - 37.3%
252 HP / 252 SpD Sassy Registeel - 39.6% - 46.7%
252 HP / 36 Def / 220 SpD Careful Regirock - 30.8% - 36.3%
Not a single 2HKO assuming SR and leftovers, although those pokemon are all UU and Fearow generally resides in the NU tier which has significantly fewer walls.
I think that a Sub/LO set with roost and two coverage attacks would be fairly effective if paired with a Rapid Spinner (Basically a replacement Staraptor minus Intimidate and Close Combat).
Fearow @ Life Orb
Ability: Sniper
Nature: Jolly / Adamant
Evs: 4HP / 252 Atk / 252 Spe
~ Substitute
~ Return / Drill Peck
~ Drill Liner
~ Roost
Simply come in on one of the many Grass types littering NU or a choiced Ground or Ghost move and set up a sub. Normal / Ground and Flying / Ground both give decent coverage and Fearow can hit fairly hard. I'd reccomend a Jolly nature because his 100 base speed is high for NU standards and should be abused, however Adamant can be used if you appreciate more power. Fearow has the rare luxury of learning Roost via level up, not TM, so it is fully compatible with Sniper, its purpose being to help offset the residual damage of Substituting and LO.