Noggle Hedge-Mage — ruling 1

Each of the triggered abilities has an "intervening 'if' clause." That means (1) the ability won't trigger at all unless you control two or more lands of the appropriate land type when the Hedge-Mage enters, and (2) the ability will do nothing if you don't control two or more lands of the appropriate land type by the time it resolves.

Noggle Hedge-Mage — ruling 2

Both abilities trigger at the same time. You can put them on the stack in any order.

Noggle Hedge-Mage — ruling 3

Each of the triggered abilities look at your lands individually. This means that if you only control two dual-lands of the appropriate types, both of the abilities will trigger.

Noggle Hedge-Mage — ruling 4

Both abilities are optional; you choose whether to use them when they resolve. If an ability has a target, you must choose a target even if you don't plan to use the ability.

Noggle Hedge-Mage : règles, fonctionnement et interactions (MTG)

Noggle Hedge-Mage 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

When this creature enters, if you control two or more Islands, you may tap two target permanents. When this creature enters, if you control two or more Mountains, you may have this creature deal 2 damage to target player or planeswalker.

How it works : Noggle Hedge-Mage

Original English text — Wizards of the Coast / Scryfall

#1August 1, 2008· Wizards of the Coast
Each of the triggered abilities has an "intervening 'if' clause." That means (1) the ability won't trigger at all unless you control two or more lands of the appropriate land type when the Hedge-Mage enters, and (2) the ability will do nothing if you don't control two or more lands of the appropriate land type by the time it resolves.
No other card is named in this ruling.
#2August 1, 2008· Wizards of the Coast
Both abilities trigger at the same time. You can put them on the stack in any order.
No other card is named in this ruling.
#3August 1, 2008· Wizards of the Coast
Each of the triggered abilities look at your lands individually. This means that if you only control two dual-lands of the appropriate types, both of the abilities will trigger.
No other card is named in this ruling.
#4August 1, 2008· Wizards of the Coast
Both abilities are optional; you choose whether to use them when they resolve. If an ability has a target, you must choose a target even if you don't plan to use the ability.
No other card is named in this ruling.