You can check out our full list of Secret Rare cards from Terastal Festival for more details
For simplicitys sake, well be discussing decks in the two broad categories of tribal and non-tribal, the predominant part of the latter Ill call narrative theme decks
Surge Foil The Warhammer 40,000: Commander Decks Collectors versions will include Surge foils cards, which look like the rainbow effect on the From the Vault series

These are the cards you need for the 'Shiny Collection Complete!' Secret Mission: Mew #86 (Immersive Rare/ Shiny/ Three Gold Star) Scyther #87 (Shiny/ One Rainbow Star) Pineco #88 (Shiny/ One Rainbow Star) Phantump #89 (Shiny/ One Rainbow Star) Trevanant #90 (Shiny/ One Rainbow Star) Charmander #91 (Shiny/ One Rainbow Star) Charmeleon #92 (Shiny/ One Rainbow Star) Ponyta #93 (Shiny/ One Rainbow Star) Rapidash #94 (Shiny/ One Rainbow Star) Slowpoke #95 (Shiny/ One Rainbow Star) Pikachu #96 (Shiny/ One Rainbow Star) Raichu #97 (Shiny/ One Rainbow Star) Electrike #98 (Shiny/ One Rainbow Star) Hawlucha #99 (Shiny/ One Rainbow Star) Gastly #100 (Shiny/ One Rainbow Star) Haunter #101 (Shiny/ One Rainbow Star) Zorua #102 (Shiny/ One Rainbow Star) Zoroark #103 (Shiny/ One Rainbow Star) Forretress #104 (Shiny/ One Rainbow Star) Dratini #105 (Shiny/ One Rainbow Star) Dragonair #106 (Shiny/ One Rainbow Star) Dragonite #107 (Shiny/ One Rainbow Star) Axew #108 (Shiny/ One Rainbow Star) Fraxure #109 (Shiny/ One Rainbow Star) Haxorus #110 (Shiny/ One Rainbow Star) Mega Charizard X ex #111 (Shiny/ Two Rainbow Star) Mega Slowbro ex #112 (Shiny/ Two Rainbow Star) Mega Manectric ex #113 (Shiny/ Two Rainbow Star) Mega Gengar ex #114 (Shiny/ Two Rainbow Star) Mega Scizor ex #115 (Shiny/ Two Rainbow Star) Reward: 1 Shiny Mew Emblem

If any of them die, they go back to your hand during the end step
He's got a very fun effect, too, which essentially resurrects the creatures he kills as thralls that are 'bound' to him -- when the Krovikan Vampire dies, so do the resurrected minions