Balduvian Conjurer — ruling 1

If an affected land later loses the supertype snow, Balduvian Conjurer’s effect doesn’t end. The land will remain a creature until end of turn.

Balduvian Conjurer — ruling 2

A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.

Balduvian Conjurer : règles, fonctionnement et interactions (MTG)

Balduvian Conjurer 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

: Target snow land becomes a 2/2 creature until end of turn. It's still a land.

How it works : Balduvian Conjurer

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2008· Wizards of the Coast
If an affected land later loses the supertype snow, Balduvian Conjurer’s effect doesn’t end. The land will remain a creature until end of turn.
No other card is named in this ruling.
#2August 1, 2008· Wizards of the Coast
A noncreature permanent that turns into a creature can attack, and its abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.
No other card is named in this ruling.