>>21463290I would think it's because its stats, typing, and ability, along with the state of the metagame at that time, made it a good utility pokemon that was hard to kill and could do some damage if you needed it to.
>High Special Defense >Water/Flying means it can only be hit super-effectivley by Rock and Electric>Intimidate helps it deal with physical attackers>could throw a wrench in opponent's plans with Taunt>Stealth Rock and Stone Edge didn't exist>Thunderbolt was easy to see coming and switch out ofIt could have been used a little bit like people use Gliscor now.