I think experience and game knowledge are the best for this but they only come from playing a lot . Eventually you ' ll find yourself in the same situation and think nah , if i go in , X and Y will happen so its probably not worth it at all or something along those lines . <| sep |> Brainstorming every turn can be powerful but without a threat it doesnt seal the game . Jace being an actual win condition is very relevant and definitely one of the reasons why he is so good in legacy . Take away that ability and while he would still be good he would be nowhere near as backbreaking . <| sep |> Glad you made it out ! <| sep |> Ekans and Mankey , along with Paras and Growlithe to name a few others , are actually really common in dry biomes so I wouldn ' t find it surprising for Ditto to be disguised as one of those pokemon . Even if they are uncommon as a whole , there doesn ' t seem to be any reason why Ditto can ' t be disguised as one of them so it seems to me that we should accept that it can until we have reason to believe otherwise .