Wild Pokemon with Explosion

[Animefan666 62]

I encountered a  level 55 wild Boldore in a cave in Iolia Valley and it used Explosion against my Ghost Pokemon. At level 55, its moveset would be Stealth Rock, Sandstorm, Stone Edge and Explosion. Obviously, Stone Edge was the most viable move.

[BIGJRA 133]

Wild Pokemon typically have no AI, right? As in they just choose a move randomly?

[Animefan666 62]

I've never had a wild Pokemon use a move that would have no effect unless it was the only option. For example, in XY a wild Audino would use Takedown against a Ghost Pokemon because it has no offensive options.

[Maltor 7]

It happened to me more than once, and it kinda makes sense... pokemon don't know types (alakazam might, though), so it's expected that they'd use non-optimal attacks. It's the trainer's knowledge that prevents this.

[Animefan666 62]

I have my doubts about Wild Pokemon just randomly choosing a move. That Boldore used Stealth Rock and Sandstorm before using Explosion. Doesn't sound random to me.

[AuthorReborn 8]

Often times the AI will simply go for the highest base power move. It's why sometimes pokemon will go for Solar Beam when the sun isn't up and when attacking a Grass/Poison type. When the AI doesn't factor in type resistances, it will simply attempt to go for the most powerful attack. Since Explosion is 250 base power and Stone Edge is only 100, the AI simply tried to go for what it saw as the more "powerful" move. 

[Marcello 436]

If I'm not mistaken, Wild pokemon are assumed stupid and sorta randomly choose their moves, so I don't believe this is a bug, but I will take a look to confirm.