>>56417663The duration isn't the issue, the impact is. Paralysis only procs 25% of the time. It's still incredibly obnoxious to deal with, but slower Pokemon basically just get a 25% miss chance since the speed drop doesn't matter to them. Meanwhile, Sleep is a full stop on Pokemon for 1 - 3 turns and it can swing games horrifically. The power level in OU is so high that sleep can effectively be a OHKO if you're fighting against anything other than Stall. Your slept Pokemon can't ever come in to burn sleep turns because you'd be giving some game ending sweeper like Dragonite, Dragapult, Kingambit, Gouging Fire, Raging Bolt, Ceruledge, Garchomp, Blaziken, Kommo-o, Great Tusk, Darkrai, Iron Valiant, Iron Moth, Zamazenta, and so on and so on a free turn.
When 1 free turn is all it takes to win a game, sleep is way more busted. That's why Darkrai was considered one of the top 3 best Pokemon in Ubers from Gen 4 through Gen 6. The Pokemon itself wasn't all that threatening which is why it got dumpstered in Gen 7 Ubers despite a plethora of new Dark weak Ubers to prey on. Even when Xerneas and Primal Groudon were the top dogs of Ubers, Darkrai was right there alongside them because 1 turn of sleep in Ubers was enough to win a match. OU is so powercrept that it could probably genuinely beat Gen 4 Ubers at this point.
