Any card that mentions the sea monster creature types of Magic Kraken, Leviathan, Octopus, or Serpent are always going to be attractive to players that love the biggest, baddest beaters around
If she'd charged three, it would clearly have been off of the curve, although you can just barely get away with Worn Powerstone
Better or worse is also pretty irrelevant as you are playing either of these cards, or indeed both, if and whenever you can
The Black Smoker Starter 19 has ST19-003-tashigi, one of the strongest Black Characters who has everything built into her
Its possible we could see the mobile game add a competitive mode based on the traditional ruleset, and its also possible we could see a ruleset for the physical card game thats closer to the one that appears in Pokemon TCG Pocket