This alternate art is gorgeous, so it will definitely become a collectible item
Battles in this game are fast, frantic, and fun , and victory is achieved not just by summoning Pokmon to fight for you, but also by the tactical use of powerful Trainer cards and managing your Energy economy
Lightning Helix "Basically the awesomest card ever." Life gain gets no respect, because when you invest mana and cards in life gain it has the nasty habit of not making a difference, especially when you're trying to play a burn-heavy game, which either involves trying to burn out an opponent or all opposing creatures
Playing this in your second main phase after something died in combat is going to feel pretty good, as at that point Denethor is a three mana 2/4 and a 1/1 token, which is an amazing rate
Mathematicians much smarter than myself have done the analysis for us, and my experience tells me that it works out
If you pay the overload cost, Mizzix's Mastery won't copy itself