I would say: Base Charizard (any variant) Base Blastoise (any variant) Base Venusaur (any variant) Base Pikachu (any variant) Base Machamp (any variant) (not that Machamp is popular, just seems that everyone had this card)
This Leader is all about outvaluing opponents, having tons of card draw options to fill their hand with cards, and making sure the opposing player cant easily set up the finishing turn
Depala, Pilot Exemplar can effectively give your vehicles +2/+2 if you name Dwarf with the Engine, and more importantly, Magda, Brazen Outlaw will provide you extra treasure when your crewed Vehicles roll on into combat
[10] Dont have the Pokmon games
Healing Special Conditions, on the other hand, just has you put the card upright and/or remove the Poisoned or Burned counter
In the late game 3 life is also less of an issue than the six or more life Swords will be giving up to get rid of that Wurmcoil Engine etc