Slowbro's evolution reversal

How do we know for sure that Slowbro's evolution can be reversed if the Shellder is removed from its tail? I've never seen it happen. --Aggression25 (talk) 15:24, August 25, 2015 (UTC)

I think it was theorized in the first season but was never done, yeah I also think it should be removed. {{SUBST:Nosubst|User:felinoel/Signature}} 07:07, September 11, 2015 (UTC)