Aron

Sturdy
If the wielder is at full HP, it will survive any attack. OHKO moves will fail.
Rock Head
Recoil moves deal no recoil damage.
Heavy Metal
The wielder's weight is doubled.
Type Tier
Steel / Rock LC
Level 5 Statistics (see level 5, 50, 100)
Min- Min Max Max+
HP
50
- 21 24 -
Atk
70
11 13 16 17
Def
100
14 16 19 20
SpA
40
9 10 13 14
SpD
40
9 10 13 14
Spe
30
8 9 12 13

Overview

With Sturdy now acting as a permanent Focus Sash, Aron becomes an interesting option for performing a FEAR strategy. While it may not have as many support options as Whimsicott or Smeargle have, its immunity to Sandstorm and freedom to choose its own held item differentiate Aron from the other Level 1 Pokemon that Endeavor for success.

Name Item Ability

Level 1 Sturdy Abuse

Berry Juice Sturdy
Moveset
~ Endeavor
~ Toxic
~ Sleep Talk
~ Protect

Endeavor strikes at opponents, leaving them at an inch of their health and at the mercy of weaker attacks, such as Bullet Punch or Rock Slide. Toxic gives Aron something to use against Ghost-types, or targets struck by Endeavor. Sleep Talk allows Aron to continue to act if put to sleep, although admittedly it is not very reliable. Protect is vital, as the presence of Aron pressures the opponent to throw attacks towards it. Protect also stops Fake Out from ruining Aron's usefulness.

Team Options & Additional Comments >>>

Other Options

Due to Aron being at level 1, its options are limited to non-damaging attacks. Sandstorm is a good way for Aron to counter Hail. Screech and Metal Sound can be used to weaken an opposing Pokemon's defenses, allowing a partner to deal more damage. Lastly, Swagger can be used to try to disrupt the opponent.

Checks and Counters

There are many ways to deal with a Level 1 Aron. Abomasnow can summon up Hail, damaging Aron through residual damage and rendering Sturdy worthless. Ghost-type Pokemon are immune to Endeavor, but should still watch out for Toxic, Metal Sound, or Screech. Ferrothorn's Iron Barbs can mess up Aron, but it would require Ferrothorn to be hit with Endeavor first. Multi-hit moves such as Rock Blast or Icicle Spear can KO Aron. Lastly, Pokemon with Mold Breaker ignore Sturdy and OHKO Aron with any attack.

Unreleased

Aron's Dream World ability is Heavy Metal, but as you are using a level 1 Aron in this case, Sturdy is the only ability that should be considered.