Urban Evolution — ruling 1

Urban Evolution's effect allows you to play an additional land during your main phase. Doing so follows the normal timing rules for playing lands. In particular, you don't get to play a land as Urban Evolution resolves; Urban Evolution fully resolves first and you draw three cards, perhaps including a land you'll play later.

Urban Evolution — ruling 2

The effects of multiple Urban Evolutions in the same turn are cumulative. They're also cumulative with other effects that let you play additional lands, such as the one from Explore.

Urban Evolution — ruling 3

If you somehow manage to cast Urban Evolution when it's not your turn, you'll draw three cards when it resolves, but you won't be able to play a land that turn.

Urban Evolution : règles, fonctionnement et interactions (MTG)

Urban Evolution is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Draw three cards. You may play an additional land this turn.

How it works : Urban Evolution

Original English text — Wizards of the Coast / Scryfall

#1December 7, 2018· Wizards of the Coast
Urban Evolution's effect allows you to play an additional land during your main phase. Doing so follows the normal timing rules for playing lands. In particular, you don't get to play a land as Urban Evolution resolves; Urban Evolution fully resolves first and you draw three cards, perhaps including a land you'll play later.
No other card is named in this ruling.
#2December 7, 2018· Wizards of the Coast
The effects of multiple Urban Evolutions in the same turn are cumulative. They're also cumulative with other effects that let you play additional lands, such as the one from Explore.
No other card is named in this ruling.
#3December 7, 2018· Wizards of the Coast
If you somehow manage to cast Urban Evolution when it's not your turn, you'll draw three cards when it resolves, but you won't be able to play a land that turn.
No other card is named in this ruling.