If you just want to stomp the game I think things are easiest with Squirtle and friends by far, since you can build it into a Rain Dance deck later and have something that's out of any of the CPU trainers' league, whereas Charizard and Venusaur aren't as competitively powerful(though Pokemon Center cheese with Venusaur is pretty entertaining...), but you can really get away with doing a decent version of whatever you feel like running so I'd just go with whatever you think sounds fun
Its actually the same effect, but you get a 1/1 frog instead of the full creature
Final Advice In short, authentic Pokmon cards stand out with clean printing, accurate colors, proper fonts, and unique finishes
The card is still a value machine and as long as Black decks can fill their trash with characters with powerful on-play abilities, Gecko Moria will continue to rule the top end for the black color
Is it powerful enough
If both targets are illegal, Beat a Path will be put into its owner's graveyard