Butterfree

Butterfree, at a glance, is a terrible Pokemon. Horrible typing, bad stats overall, a shallow movepool, and a 4x Stealth Rock weakness undermine much of her remaining positive qualities. However, Butterfree does have one thing going for her: a 97.5% accurate Sleep Powder! Compound Eyes remedies Sleep Powder's otherwise problematic accuracy, which plagues other sleep-inducing leads such as Scarf Venusaur and Jumpluff. Having access to a 97.5% accurate Stun Spore is also pretty good, and with U-turn to scout for switch-ins, Butterfree starts to seem like a decent option. In the end, while these things certainly don't make up for Butterfree's large number of shortcomings, they at least help her to stand out as an interesting alternative status spreader.