It prevented all effect of attacks, including damage, done to Mewtwo by your opponents Pokemon that werent Evolved Pokemon
While Nezahal is a personal favorite of mine, its not quite as resilient and game-ending as Hullbreaker Horror, which takes Tidespout Tyrant and turns it up to eleven
We tried having them enter tapped, but it weakened them too much
Graveyard-based combos will be disrupted best by graveyard hate which can exile cards from the graveyard
Two six-sided dice usually give you 4-6 mana worth of cards, and that includes all the lands and 0-mana spells as well
Awesome, but Impractical: Dragon types generally do not have weaknesses, have higher than average HP and strong attacks