Drover of the Mighty may not even be better than Servant of the Conduit because of Goblin Chainwhirler, and while Regisaur Alpha is good, its actual Dinosaur synergy isnt really that important
Plus, you get an extremely adorable Puttimon floating about
Once per turn, during the End Phase: You can target 1 monster in your GY that was used as Fusion Material for a Fusion Summon this turn
You can squeeze a win or two just by slowly adding energy onto Mewtwo, but Gardevoir can speed up the process and allow you to get a one-hit KO in every turn
And finally, some cards with bargain make the resulting spells cost less mana to cast
card game, monster stats boil down to three categories: Attack, defense, and level