by all means go right ahead............... if your looking for any kind of specifics as to what member does what.......... gardevoir has trace which is invaluable against some of the later mutated boss fights and is borderline godly when dealing with the one in the space station later on................. typhlosion is my fusion choice as when dealing with WT it has the least amount of issues setting up some flame charges against their middle stage and being a fire type its immune to the burn effect from one of its moves and its capable of learning shadow claw which W.T. is weak to but overall is a mixed attacker.............. breloom is also mixed but for the most part generally ends up being revive fodder if need be in the later fights.............. scarab is a physical sweeper running moxie, i also usually give it close combat megahorn and sometimes night slash.............. when using greninja i use them as my mega as thats how u get ash-greninja in this and due to lack of battle bond it retains protean which is quite helpful making it especially useful as a special attacker with the usual competitive moves like scald and dark pulse sneasel after i evolve it into weavile is going to be a physical sweeper as well due to its naturally high physical attack and speed stats as for EV spreads u neednt worry there as u can max out all of the stats to 252 EVs like back in the old days of gen 2 natures u can go with whatever u prefer but the sweepers i.e gardevoir heracross and sneasel should get a nature fitting their moveset as such