Fire: Even if everyones favorite Pokmon is Charizard, Fire is a bit difficult to build
Only problem with this, I'm not an expert on rulings or anything, but the card seems to imply that the effect can only be activated once per turn, thus only one player can use it every turn
Here, you want weak creatures with good ETB effects like your typical Burglar Rats and Virus Beetles
If you like a more steady, fixed approach, Pokmon is definitely the franchise for you, but if you like something with more diversity, than you should check out Yu-Gi-Oh
Seadramon This card's inherited effect gives 1 of your blue Digimon when you play another Digimon, making this a great choice for playing Aquatic Digimon from digivolution cards