Nerfed Marshadow
Stats: 80/95/60/80/70/95 (-10 HP, -30 Atk, -20 Def, -10 SpA, -20 SpD, -30 Spe), 480 BST (-120)
Type: Fighting/Ghost (unchanged)
Ability: Iron Fist
Removed Moves: Bulk Up, Close Combat, Poison Jab, Iron Head
Justification: Nerfed Marshadow no longer has a way to set up (calm mind marsh, anyone?) and loses its strongest reliable Fighting stab. It is also unable to hit Fairies SE with strong coverage moves. Losing Technician also hurts Shadow Sneak, Rock Tomb, and HP Ice. However, it gets Iron Fist to make up for it, powering up its Drain Punch and elemental punches, and it still has Spectral Thief. 95 Atk and 95 Spe aren't bad in NU either.
Sample Set:
Marshadow @ Marshadium Z
Ability: Iron Fist
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Spectral Thief
- Drain Punch
- Ice Punch
- Shadow Sneak
Nerfed Pheromosa
Stats: 71/127/37/127/37/81 (-10 Atk, -10 SpA, -70 Spe), 480 BST (-90)
Type: Bug/Fighting (unchanged)
Ability: Swarm [HA: Justified]
Removed Moves: Ice Beam, Throat Chop
Justification: By severely nerfing Pheromosa's speed, it is no longer as threatening, as most offensive mons outspeed and OHKO it. Removing Ice Beam allows Flying-types to wall it; removing Throat Chop gives Ghosts a much easier job walling it as well. Swarm and Justified are mostly (but not completely) useless abilities.
High Jump Kick remains, though, so it could serve a similar role as Medicham (while having marginally higher speed). Also note that this thing gets Agility, Quiver Dance, and Rapid Spin, although I doubt they'll be useful.
Sample Set:
Pheromosa @ Choice Scarf
Ability: Justified / Swarm
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- U-turn
- High Jump Kick
- Poison Jab
- Drill Run / Lunge
Nerfed Kartana
Stats: 59/137/113/59/29/83 (-44 Atk, -18 Def, -2 SpD, -26 Spe), 480 BST (-90)
Type: Grass/Steel (unchanged)
Ability: Overgrow [HA: Light Metal]
Removed Moves: Smart Strike, Knock Off
Justification: Its Attack and Speed have been nerfed to levels that are still decent in NU, but not broken. Because of its low SpD, it is unable to set up on some walls that can take it out with even a weak special move.
Without Smart Strike, it loses its secondary stab; without Knock Off, it can still use Night Slash but that lacks utility. Overgrow powers up Leaf Blade when Kartana is low on health; Light Metal is mostly useless. In general, Kartana functions like it did would OU: Choice Scarf (which can no longer snowball out of control) or SD + Z-move (sticky web support is appreciated).
Sample Set:
Kartana @ Grassium Z / Fightinium Z
Ability: Overgrow
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Leaf Blade
- Sacred Sword
- Return / Psycho Cut / Night Slash / Defog
Nerfed Nihilego
Stats: 79/53/47/97/101/103 (-30 HP, -30 SpA, -30 SpD), 480 BST (-90)
Type: Rock/Poison (unchanged)
Ability: Solid Rock [HA: Poison Point]
Removed Moves: Toxic Spikes
Justification: Its bulk and SpA are now reduced significantly; while its Speed is good, it can get outsped and OHKOed by Delphox's Psyshock. Without Toxic Spikes, it loses much of its utility (otherwise it might be able serve as a lead, or even as a special wall on sand teams). Solid Rock is niche, but does allow it to survive some hits it otherwise wouldn't (0 SpA Slowbro Psyshock vs. 0 HP / 4 Def Solid Rock Nerfed Nihilego: 234-276 (78.2 - 92.3%)). Rock/Poison aren't good stabs when Steelix is everywhere. Non-nerfed Nihilego is probably dropping to RU soon because of its bad matchup vs common UU threats like Scizor, Gliscor, and Latias.
Sample Set:
Nihilego @ Choice Specs
Ability: Solid Rock
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Grass Knot
- Power Gem
- Thunderbolt
Things that these nerfed Ultra Beasts have in common:
480 BST
Prime stats
Exactly two stats over 100
Ability involves primary type; HA involves secondary type