Done and done , now to . go play some cata . <| sep |> I think naya is just stronger if you ' re going with RGx because of access to sideboard cards and cards like helix and path . Not much reason for splashing blue IMO <| sep |> Hydro is a great power source , it is much more reliable than something like solarwind which depend on weather conditions . Of course , not everyone has access to hydro . Biomass is extremely expensive to use . If the biomass is in the form of wood then it involves farming trees or cutting a lot of trees to burn via cutting forests . It can be done , but it is not used widely by developed nations for a good reason . I ' ve never heard of tidal energy before , but it looks interesting . Seems like it would be a worthwhile source of renewable energy for coastal countries , but I doubt these poorer nations will be picking it up .