# 2023 Magic: The Gathering March of the Machine #145

> The 2023 Magic: The Gathering March of the Machine foil card, Invasion of Kaldheim // Pyre of the World Tree (No. 145), features a transformative Battle — Siege design by artist Bryan Sola.

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## Identity

- **Year**: 2023
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: March of the Machine
- **Card number**: #145
- **Product type**: TCG_CARD

## Description

Invasion of Kaldheim // Pyre of the World Tree, numbered 145, is a distinctive foil card from the 2023 Magic: The Gathering March of the Machine set. Designed by Bryan Sola, this card utilizes a unique layout that allows it to transform during gameplay, shifting from the initial Siege state to its second face. This mechanic adds a layer of strategic depth, appealing to players who enjoy dynamic board states and interactive card interactions within the Magic: The Gathering trading card game.

The card features a mana cost of three generic mana and one red mana, resulting in a mana value of four. As a Battle — Siege, it introduces a specialized card type that requires players to engage with an opponent's defenses. When the Siege enters the battlefield, players choose an opponent to protect it, creating a shared target that others can attack. Once the Siege is defeated, it is exiled and cast transformed, revealing its second face.

The second face, Pyre of the World Tree, offers a powerful resource engine. Upon entering, it exiles all cards from your hand, allowing you to draw that many cards. For the remainder of your next turn, you may play the cards exiled this way, providing a significant burst of flexibility and card advantage. This ability makes the card a compelling inclusion for decks seeking to manipulate their library and generate value through calculated risks. Collectors of Magic: The Gathering often seek out foil variants for their enhanced visual appeal and durability, making this release a notable piece for enthusiasts of the March of the Machine expansion.

## FAQ

### What is the mana cost of Invasion of Kaldheim // Pyre of the World Tree?

The mana cost is {3}{R}, which translates to three generic mana and one red mana, resulting in a total mana value of four.

### How does the Battle — Siege mechanic work for this card?

When the Siege enters, you choose an opponent to protect it. Other players can attack it, and when it is defeated, it is exiled and cast transformed into its second face.

### What is the effect of the second face, Pyre of the World Tree?

When this face enters, you exile all cards from your hand and draw that many cards. Until the end of your next turn, you may play the cards exiled this way.

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Last verified: 2025-11-29.