The most broken cardand one of the most broken cards of all timewas easily Nadu, Winged Wisdom, which was printed to be an exciting Commander, according to Wizards
Drawing random cards from a shuffled deck makes gameplay balanced and less predictable and more exciting, but some cards with special abilities, like scry, can skirt the rules a little
To use an attack, the Pokmon must have Energy attached to it equal to or greater than the attack's Energy requirement
These are earned in a variety of ways, from opening duplicate cards to quests or simply leveling up
Milotic ex : A water-type Sleep deck that trades in high power for a quick early game
Making copies of permanents that generate energy (like Whirler Virtuoso) doesnt even tax your energy that much