It doesnt have convoke so I think it being Instant might not have been too bad, but Im far from a game designer and balancer
There's one thing I caution that's different than all of these other Evolving Wilds, however: Because Myriad Landscape specifically references that the two basics have to share a type, Landscape actually cannot go get WastesWastes in your colorless deck, as they do not technically have a land type
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This means that if a deck contains several copies of the card, with enough card draw, a player can easily use Nexus of Fate to chain several extra turns together in game-winning effect
Blacks control over fear and dementia lead to another vital power: hand disruption
When the game reaches the later turns and your opponents are sufficiently drained, fire off massive finishers like Gray Merchant of Asphodel or Corrupt to rip huge chunks of health from the table and use Vito's ability as a devastating finishing cannon to knock out the remaining players