Alpine MoonHow it works & interactions with other cards

What it Does

As Alpine Moon enters the battlefield, you choose a nonbasic land card name. Every land your opponents control with that exact name loses all of its original land types (like Mountain or Forest) and all of its printed abilities. In exchange, those lands gain a single new ability: the ability to tap for one mana of any color. It is important to note that Alpine Moon does not affect the land's supertypes or other types; a Legendary land remains Legendary, and an Artifact land remains an Artifact.

How it Resolves Step by Step

First, you cast Alpine Moon and it moves to the stack. When it resolves and enters the battlefield, you choose a nonbasic land name; this choice does not use the stack and cannot be responded to. Once it is on the battlefield, the static effect applies immediately. Any existing lands with that name lose their abilities. If a land with that name enters the battlefield later, it enters with no abilities. Because the effect applies 'as' the land enters, any 'enters the battlefield tapped' effects or triggers that happen 'when' a land enters are negated.

Common Mistakes

A common point of confusion involves the interaction with land types and subtypes. While Alpine Moon removes land types like 'Urza's' or 'Mine', it does not remove the 'Land' card type itself. Furthermore, it only affects your opponents' lands. Your own lands with the chosen name remain completely unaffected, allowing you to use your utility lands while your opponent is locked out. Additionally, remember that Alpine Moon only affects the specific name chosen; it will not stop different lands that might have similar functions.

When to Play It

You should play Alpine Moon when your opponent relies on a specific nonbasic land to win or generate massive value. It is particularly effective against lands with powerful triggered or activated abilities that Alpine Moon can overwrite. Since it only costs one red mana, it is an efficient way to disrupt an opponent's tempo early in the game while ensuring they can still produce mana, preventing them from being completely mana-screwed but removing their strategic advantage.

Interaction examples

Deconstructing a Saga

Urza's Saga

When you name Urza's Saga with Alpine Moon, the land loses its Saga enchantment subtype and all lore counter abilities. Because a Saga's final chapter ability is what causes it to be sacrificed, and Alpine Moon removes that ability, Urza's Saga stays on the battlefield as a land that can tap for any color. It no longer produces Constructs or searches for artifacts.

Entering the Battlefield Cleanly

Impact Tremors

If an opponent plays a land that usually enters the battlefield tapped or has a triggered ability (such as dealing damage via a creature entering while Impact Tremors is out), Alpine Moon ensures the land enters untapped and without those abilities. The land loses its identity the moment it hits the table, meaning no 'When this land enters' triggers will ever be put on the stack.

Basic Mana Utility

If you name a card like 'Field of the Dead', your opponent's copies of that land lose the ability to create Zombies. However, they gain the ability to tap for any color of mana. This often helps your opponent fix their colors, so use Alpine Moon only when the land's original ability is more dangerous than the flexibility of five-color mana.