The set introduced several new ways to collect cards, including jumbo cards and reverse holofoil prints, with key holofoil reprints like Charizard, Dark Blastoise, Dark Raichu and, of course, Pikachu
Raugrin Triome Raugrin Triome is just one example of a Triome card
What this means is that, should the Troll take lethal damage from something (say from combat, or your opponent casting Pyroclasm), the Troll will stay alive as long as you pump two mana into him
Besides Umbreon VMAX and Rayquaza VMAX, V cards and VMAX cards sell for similarly high prices in the Pokmon Trading Card Game
Losing life in the early game is fine, trade life for keeping and getting resources