Scroll ThiefHow it works & interactions with other cards

How the Ability Triggers

The ability of Scroll Thief is a triggered ability that looks for a specific event: combat damage being dealt to a player. This means the creature must not be blocked, or it must have an ability like trample that allows some damage to carry over to the opponent. Note that this only triggers on combat damage; other forms of damage or damage dealt to planeswalkers or battles will not cause you to draw a card.

Resolution and Requirements

Once the combat damage step occurs and Scroll Thief successfully deals damage to a player, the ability goes on the stack. According to the official rulings, this ability is mandatory. Even if you have very few cards left in your library, you must draw a card when the ability resolves. Additionally, the amount of damage dealt does not matter; whether Scroll Thief deals one damage or ten, the ability triggers exactly once per combat damage step.

Strategic Timing

Because the draw happens during the combat damage step, the card you draw will usually be available to you during your second main phase. This makes Scroll Thief an excellent lead-in to further plays, as it can help you find land drops or additional spells to cast after combat.

Interaction examples

Doubling Your Knowledge

Roaming Throne

If you have Roaming Throne on the battlefield with 'Merfolk' or 'Rogue' chosen as the creature type, Scroll Thief's ability will trigger an additional time. When Scroll Thief deals combat damage to a player, you will put two draw triggers on the stack instead of one, allowing you to draw two cards total.

Bypassing Blockers

Solemn Simulacrum

In a scenario where your opponent has a Solemn Simulacrum to block with, Scroll Thief will deal its combat damage to the creature instead of the player. Because the damage was not dealt to a player, the draw ability does not trigger. You must find a way to make Scroll Thief unblockable or remove the Solemn Simulacrum to get your card draw.