He guarantees food production every turn, and makes all food cheaper to activate by 50%
As I mentioned, a lot of its content is reprints
When you resolve a Price of ProgressPrice of Progress with Niv-Mizzet, VisionaryNiv-Mizzet, Visionary in play, you realize two things, almost instantaneously: One, you're going to win this game
The full text of this ability is At the beginning of the precombat main phase of a player with rad counters, that player mills cards equal to the number of rad counters they have
Even better, you get to pick one of those cards to add an additional two mana tax to cast it or activate abilities from it
Descend 8 Whenever you draw a card, if there are eight or more permanent cards in your graveyard, target opponent loses 1 life and you gain 1 life