>>50903041Thunder Wave is inexcapable because waves travel to every direction. But depending on the intensity of the energy wave that struck the nerves of the opposing Pokemon, it may or may not cause Paralysis so 90% is somewhat correct.
We aren't sure how Toxic is delivered to the opposing Pokemon other than it induces instant Poisoning without apparent contact. But if there is a projectile, then Toxic should be lower than 90% because of the probability of the projectile to hit or miss the target. But if it is like Thunder Wave, delivered through a wave of poison-inducing sludge to all direction, then 90% chance to poison seems correct as it will now depends on the strength of the opposing Pokemon's immune system to deal with the poison.
Will-o-Wisp is a projectile-like attack that uses spirit-controlled homing floating spirit fire to induce Burn damage to the opposing Pokemon. Since these Will-o-Wisp orbs travel slowly, some Pokemon can dodge them by calculating the probability of the path that the orb sill travel. But then the orbs are being controlled to home onto their targets so the 85% accuracy rate might be correct.