Since Pokmon TCG Pocket simplifies the battle systems (and hasn't introduced the different mechanics that the trading card game has released over decades), we're focusing on art style, general vibes, or cards I think would be a good replacement for the Pocket versions
In general, we should keep a skeptical eye towards any aggressively-enforced "consensus" among the loudest voices on the internet
This means that, if you draw a decent hand, you can often deal a few decisive blows before your opponent has got their Mewtwo ex or Celebi ex online
It gives all your creatures +1/+1, trample, and infect until end of turn
But the support for a token-aggro strategy is definitely there, and its simplicity means it can be powerful without relying on a precise combination of cards
Vivi naturally becomes stronger every time you cast an Instant or Sorcery