Originally Posted by Fat ReyScarface
Dusknoir stays with a good spot in OU by several reasons most notably:
Walling Heatran: A Modest Heatran Fire Blast cant 2hko dusky, what makes him an awesome counter to massive damage the beast with an EQ.
Walling Scizor & Other Physical threats (Gyarados, Salamence, Lucario): Willowisp makes him very good in the physical side.
AND His ability to recover damage while damaging others. I dont know why ppl think Pain Split is a bad move. Its awesome against the likes of Blissey or Snorlax.
Modest Heatran Fire Blast- 42.86 - 50.68, 95.6 chance of being 2HKO'd after Stealth Rock and Sandstorm, 41.55 chance of being 2HKO'd after just SR.
Flash Fire Boosted Fire Blast- 63.95-75.51, 100% chance of being 2HKO'd.
Those are both on 252/252 +SpDef nature Dusknoir, i wouldnt call that a safe counter.
Adamant Scizor Swords Dance Night Slash vs max/max Dusknoir- 66.67- 78.91. Not bad here, considering not many Scizor run Night Slash. Dusknoir is a relatively safe Scizor counter, although with LO it OHKOs 92.31% of the time with SR.
LO DD Mence OHKOs ~70% of the time with SR out, CB Outrage always 2HKOs. Luke does 87.76 minimum with +2 Crunch. Dusknoir also needs Thunderpunch to stop Gyarados running Taunt or Restalk Dragon Dance.
Besides that, Dusknoir is kinda set up fodder, thats why i dont use it.