>>42608365You can give it an evolution based around two moves it can learn, and checks for which one is present first before the other if you have both moves on it
>D-Toxin StrikeBug move that can strip away any special properties on your opponent (screens, immunities, stat boosts, etc.) and can take away a big amount of health (50% is what I'm thinking would be fair)
>O-Toxin StrikeBug move that can leave an opponent in a severe condition depending on their typing, abilities, and/or stats leaving either Toxic, Burn, or Paralysis (no Sleep or Freezing because it'd be broken as hell and wouldn't make much sense, whereas Burn or Paralysis can actually happen with venoms)
Apologies if the idea is a shit suggestion
Now, if you were talking about actual assassin bugs, unfortunately there isn't that much to offer as it was only during early 2018 that he discovery was made, so afaik there wasn't much explanation on HOW the animal evolved to get that venom yet though I could be wrong