Worldspine Wurm — ruling 1

Worldspine Wurm's last ability is a triggered ability, not a replacement ability. Players can respond to this ability, for example, by trying to exile Worldspine Wurm from the graveyard before it's shuffled into a library.

Worldspine Wurm : règles, fonctionnement et interactions (MTG)

Worldspine Wurm 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

Trample When this creature dies, create three 5/5 green Wurm creature tokens with trample. When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.

Complete guide

Worldspine Wurm is a monumental 15/15 creature that represents the raw, unbridled power of nature. This massive threat ensures that even if your opponent manages to fell it, the impact on the battlefield remains overwhelming while the Wurm itself prepares for a later return.

A Triple Threat Replacement

Worldspine Wurm features two distinct triggered abilities. The first triggers specifically when it dies—meaning it moves from the battlefield to the graveyard—resulting in three 5/5 green Wurm creature tokens with trample. The second ability triggers whenever it is put into a graveyard from anywhere, including from your hand or library, ensuring the card is shuffled back into its owner's library.

Navigating the Graveyard

It is crucial to understand that Worldspine Wurm's shuffle ability is a triggered ability, not a replacement effect. When the Wurm hits the graveyard, the ability goes on the stack. This gives players a window to respond. If an opponent has a way to exile the Wurm from your graveyard while the trigger is waiting to resolve, the Wurm will be exiled and will not be shuffled back into the library.

Strategic Timing

Because of its high mana cost, Worldspine Wurm is often a prime target for 'reanimate' strategies or effects that put it directly into play. However, since it shuffles itself back immediately upon hitting the graveyard, you must use 'instant-speed' recursion or effects that bypass the graveyard entirely to get it onto the battlefield without paying its full cost.

Interaction examples

The Infinite Wurm Cycle

Wurm

If Worldspine Wurm is destroyed by a spell while on the battlefield, two abilities trigger simultaneously. You choose the order. Typically, you will create three 5/5 Wurm tokens and then shuffle Worldspine Wurm back into your library. Even if the shuffle is prevented, you still keep your three 5/5 tokens.

Colossal Shuffles

Blightsteel Colossus

If both cards are discarded at once, they behave differently. Blightsteel Colossus has a replacement effect ('instead'), so it never actually hits the graveyard. Worldspine Wurm does hit the graveyard, triggers its shuffle ability, and can be interacted with via graveyard hate before it leaves.

The Primal Discount

Ghalta, Primal Hunger

With Worldspine Wurm on the battlefield, your total power is at least 15. When you go to cast Ghalta, Primal Hunger, its cost reduction looks at that power. Since Worldspine Wurm provides a 15-power discount, Ghalta's cost is reduced to its minimum of two green mana.

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Worldspine Wurm

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2012· Wizards of the Coast
Worldspine Wurm's last ability is a triggered ability, not a replacement ability. Players can respond to this ability, for example, by trying to exile Worldspine Wurm from the graveyard before it's shuffled into a library.
Card named in this ruling
Wurm