Even if it doesnt win the game on the spot (which it can enable, unlike Necropotence), it will load up your hand with many of the best cards in your deck immediately, helping form your game plan for the coming turn rotation
Now it is back down to 10: Colorless, Grass, Fire, Water, Lightning, Psychic, Fighting, Darkness, Metal, and Dragon
In this Deck Recipe, they are all at 1 copy, but feel free to tweak the Deck to your liking
And while land denial is never the most fun, it's possible that now is actually a time that punishing ramping mana bases full of Triomes and dual lands is actually a bit heroic
Slot in burn spells to churn through any resources your opponent's thought they had because the miracle of to pay for any one spell on any turn is powerful