For Horde hunters in Classic, boars can get Charge Rank 2 once you can tame a boar that already knows it, which community sources place around level 12 pet level on specific boars, but Horde usually can’t learn it easily without going to Alliance territory like Westfall.

What that means

  • Boar Charge Rank 1 is the easy starter version for Horde.
  • Charge Rank 2 is tied to higher-level boars, commonly cited at about pet level 12.
  • For Horde, getting it typically means traveling to a zone like Westfall or another place where a boar with that rank can be tamed.

Practical answer

If you want the shortest answer: around level 12 pet level, but Horde usually has to travel to get it.

Caveat

There’s some forum chatter with slightly different travel advice and level ranges, but the consistent point is that Horde cannot normally pick it up immediately from local starting-zone boars.

TL;DR: Charge Rank 2 is roughly a level 12 boar ability, but Horde usually has to go out of the way to tame a boar that already knows it.