Silverquill, the Disputant

Legendary Creature — Elder Dragon · 4/4

Flying, vigilance

Each instant and sorcery spell you cast has casualty 1. (As you cast that spell, you may sacrifice a creature with power 1 or greater. When you do, copy the spell and you may choose new targets for the copy.)

Does Copy

In lists Elder Dragons

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$4.60

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7D 30D 90D

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Secrets of Strixhaven SOS #226
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Official rulings 4

Casualty N means "As an additional cost to cast this spell, you may sacrifice a creature with power N or greater." and "When you cast this spell, if a casualty cost was paid for it, copy it. If the spell has any targets, you may choose new targets for the copy."

March 20, 2026
If you pay the casualty cost of a spell, the copy will resolve before the original spell.

March 20, 2026
The copy of the spell is created on the stack, so it's not "cast." Abilities that trigger when a player casts a spell won't trigger.

March 20, 2026
You may sacrifice only one creature to pay a spell's casualty cost, and you copy the spell only once.

March 20, 2026