I meant switch out to a Pokemon that can easily counter Emboar but wouldn't have been able to switch in on one of its attacks, a revenge-killer. And the "foe can switch out thing" was one of only a number of flaws I pointed out about it.
There are few times when using a 150 base power recharge is acceptable. Emboar is not one of those times.
The acceptable times are:
-Slaking with Giga Impact. Due to the Truant, you aren't wasting a turn and are doing a lot of damage with 150 base power, STAB, an excellent attacking stat, and probably a Life Orb or some other booster. Even then, Slaking like Return in order to switch out.
-Porygon-Z with Hyper Beam. Porygon-Z hits incredibly hard with it thanks to a high Special Attack and Adaptability. Tri-Attack is still better though.
-Keldeo with Hyper Beam. Only with a Choice set. Keldeo has such a poor movepool that not much is available to it when Scarfed or Speced. Still, it doesn't add much and can cause some problems due to those flaws I mentioned in number 2 for the Emboar thing. I use Focus Blast myself. It might already have solid Fighting STAB, but that hits the Defense stat. When facing a Steel type, I need to hit for Special. So Focus Blast is the way to go there.
-Any Pokemon who can learn Hyper Beam in Gen I. Hyper Beam had different mechanics in Gen I. These made it not only usable but incredibly awesome.
It is kind of a tradition on this site to teach users the flaws of the recharge attacks. It brings them one step closer to becoming better battlers.
Oh, and if anybody else has any good examples of when to use recharge attacks on a Pokemon, let me know! :D