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for renicules you should keep the shadow ball because you have no other ghost/psychic coverage on this team(and ttar can take care of fighting type attacks)if your really worried about having more reliable fighting type moves then add technician hitmontop with Mach Punch :p STAB and a 1.5 boost
Umm first of all you should put Black Sludge on the Tentacruel :D second the only problem i seen here was volcanara(or however you spell it) you should replace replace Toxic with Quiver Dance as it boosts sp atk sp def and spd second instead of heat wave use fiery dance you could use the extra...
yaay ty for the SID judging by the equation this would explain why i encounter absolutly 0 shinies...but im sure even a bad shiny equation can fight with RNG :p thanks! and i dont need servine back i got a shiny snivy in a trade and il just train that