You have discard for disruption and to win attrition-based battles
From there you can spend your mana to kill your opponents with tons of the combo pieces like Makeshift Munitions, Hissing Iguanar, or Flamewave Invoker
are all highly scrutinized cards
Choosing when to waste a potential future resource or when to conserve it was really tough, both because the deck style was unfamiliar and because the interactions were all very different
Theres a bunch of these VMAX illustration cards, and theyre all wonderful, but I picked this one as my favorite
Sources: TCG Player (Base Set Mewtwo, First Edition Rocket's Mewtwo, Mew & Mewtwo GX, Mewtwo ex, Mewtwo Gold Star, Rocket's Mewtwo ex, Shining Mewtwo, Mewtwo e-Card, Rocket's Mewtwo [Winner], Mewtwo [XY Evolutions Staff Prerelease]), PriceCharting (Base Set 1st Edition Shadowless Holo Mewtwo, Mewtwo Gold Star)