Dec 15, 2018
If I cast Selective Snare and choose a soldier token, then copy it by League Guildmage second ability, can I choose a bird token as new target? Or I have to choose another creature which has soldier type?
You’ll have to choose another Soldier.
While you normally make decisions such as choosing a creature type when a spell resolves, that’s not the case for Selective Snare. Selective Snare requires the type to be chosen in order to choose targets, so the choice is made immediately before you choose your targets when you cast it. Since the copy made by League Guildmage isn’t being cast, you don’t get to choose a different type for it and are locked into targeting more creatures of the same type.