PT, available only at MagicSecretLair.com
So just by having them in play, you will gain that lore when you start your turn
In a world where cards entering the battlefield matters more though, flicker or blink effects, which make a card leave the battlefield momentarily only for it to enter the battlefield again, become much better
This includes Rayblade Trooper itself if it had a +1/+1 counter on it when it died
Value-wise however, theyre always will be way below the more desirable official releases, like the Alpha Black Lotus or Pokmon Trophy cards will always be miles above any possible unofficial test print, no matter how cool
There are more upgrades out there than just the ones mentioned here, but this is a good place to start