Neither hexproof nor card draw will win games on their own, but with a well-built deck they are incredibly powerful tools to have in your toolbox
Light: Unlikely to contain a holographic card
You can stick with Edgar Markov and build an aggressive Vampire deck by adding more lords, Shared Animosity, and other aggressive tribal-matters cards, or you can go with Licia, Sanguine Tribune and build lifegain combo with Sanguine Bond, Exquisite Blood, Defiant Bloodlord, and the like
The card is very similar to the infamous Seismitoad EX but has the amazing lightning support cards such as Tapu Koko Prism, Thunder Mountain Prism, and Electropower
Mewtwo V SA has held above $80 for 18+ months straight a rare stability profile among modern JPN chase cards
Sword and Shield isn't just about one set though, Fusion Strike, Lost Origins and Silver Tempest also have some god tier level grails