You'll see exactly how this card's graded values have shifted over the past year
Players cant untap more than one land during their untap steps
However, its secondary effect is where the Information Gain lies: This attack does 30 more damage for each Energy attached to all of your opponents Pokmon. In a meta dominated by high-energy Ancient and Future decks, or the upcoming Mega Rayquaza ex which requires 4-5 Energy to swing, Mega Mewtwo Y ex can easily hit for 360+ damage for a three-energy investment
The Wise Mothman makes everyone mill cards, triggering many synergies from cards like Syr Konrad, the Grim, while distributing +1/+1 counters around your creatures
Below is a complete decklist so you can get a closer look
Playing the Sleep Strategy To use a Sleep deck effectively, follow these strategic principles: Start with Jigglypuff In the early game, deploy Jigglypuff to begin disrupting your opponents board