The variants in English, German, French, Spanish and Portuguese with the 1999 WOTC copyright year received the Starlight Holofoil
Arden Angel only has a single physical printing so far in the Secret Lair, but theres not an insignificant chance that it and some of the other cards could make it to a Universes Within set
There might be an argument for having a Cabal Therapy in the sideboard if you are on a heavy Empty the Warrens sideboard plan because of the amazing synergy that creatures have with Cabal Therapy, but keep in mind that Cabal Therapy took a huge hit with the Gitaxian Probe banning, so it could cost you the game if you name the wrong spell
Dont write off this article because you wont be using continuous traps yourselfif you let your opponent make an illegal play that costs you the game because neither of you knew how to use the traps correctly, youre going to wish you paid attention to the rulings that would have prevented it.
Any players rocking Autochthon Wurm, Shadow of Mortality, Earthquake Dragon or Draco will be in for a surprise