So here is the clause
If I get a dada zarude through event code and someone needs that pokemon for dex only, And we did the trade. After I trade the dada zarude the one who needs help, He will trade it back and after he will trade it back to me will the message say Welcome Back Zarude?
(Havent Tried That Yet So It Just Question)
Maybe a trial and error run?
(Sorry for wrong grammar)