Clan Guildmage — ruling 1

Activating Clan Guildmage’s first ability after a creature has blocked won’t remove the blocking creature from combat or cause the creature it blocked to become unblocked.

Clan Guildmage — ruling 2

Clan Guildmage’s second ability doesn’t untap the land that becomes a creature.

Clan Guildmage : règles, fonctionnement et interactions (MTG)

Clan Guildmage 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 creature can't block this turn. , : Target land you control becomes a 4/4 Elemental creature with haste until end of turn. It's still a land.

How it works : Clan Guildmage

Original English text — Wizards of the Coast / Scryfall

#1January 25, 2019· Wizards of the Coast
Activating Clan Guildmage’s first ability after a creature has blocked won’t remove the blocking creature from combat or cause the creature it blocked to become unblocked.
No other card is named in this ruling.
#2January 25, 2019· Wizards of the Coast
Clan Guildmage’s second ability doesn’t untap the land that becomes a creature.
No other card is named in this ruling.