There’s a reason most players in Generation I kept Articuno on their team for the fateful battle against Lance, and that reason is, unquestionably, Ice Beam.
From the moment you saw this solid beam erupt from your Pokémon and collide with your enemy, covering the victim in razor-sharp icicles, you knew it meant business.
Sure, there was always the potential of freezing your opponent (more-or-less a fate worse than a KO), but the real draw of the move (and why it’s so ban-worthily overpowered) is its sheer, raw attack strength, and unyielding accuracy.
Legitimately, you can pretty much disregard Pokémon types and blindly fire off Ice Beams to the point where it’s almost guaranteed you’ll take multiple enemies down before fainting yourself.
… yeah, Ice Beam should probably be banned.