Any card with a silver border can't be played in any Magic format outside of Un-set constructed or Un-set draft (in other words, unless you're explicitly playing with silver-bordered cards, they're not allowed)
Im a lot more interested in Leori, though, because we can run ALL of the Chandras, or Ajanis, or whatever and also gain bonus activations
For example, everyone who has hung out near Preston Garvey knows how important those settlements are to the Minutemen, so we designed his card to enchant your lands with Settlement Aura tokens
Smart players flip the question: instead of is there a trick to get good cards in Pokmon TCG, ask how can I trade efficiently? Smart Trading Principles: Know your cards market value (use apps like TCGPlayer)
and how long they would take to do it