Shadow of the Goblin 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

Unreliable Visions — At the beginning of your first main phase, discard a card. If you do, draw a card. Undying Vengeance — Whenever you play a land or cast a spell from anywhere other than your hand, this enchantment deals 1 damage to each opponent.

Complete guide

Shadow of the Goblin is a red enchantment that shifts the rhythm of your resources while punishing your opponents for unconventional plays. It forces a deck to cycle through cards every turn while rewarding strategies that interact with the graveyard, exile, or the command zone. This card is a powerhouse for aggressive builds that look to burn opponents down through consistent incremental damage.

Unreliable Visions

The first ability, Unreliable Visions, is a mandatory triggered ability that occurs at the beginning of your first main phase. It follows a simple 'if you do' logic: you must first discard a card from your hand to be allowed to draw a card. If your hand is empty when the ability resolves, you cannot discard a card, and therefore you do not draw a card. This happens after your draw step, giving you at least one card to potentially discard even if you started the turn with an empty hand.

Undying Vengeance

The second ability, Undying Vengeance, is a triggered ability that monitors how you play cards. It triggers whenever you play a land from a zone other than your hand (such as from your graveyard or the top of your library) or cast a spell from any zone other than your hand. Every time this condition is met, Shadow of the Goblin deals 1 damage to each of your opponents simultaneously. This ability does not trigger when you play a land or cast a spell normally from your hand.

Step-by-Step Resolution

When your first main phase begins, the Unreliable Visions ability is put onto the stack. When it resolves, you choose a card in hand and discard it; if successful, you immediately draw a card. Later, if you cast a spell from exile, the Undying Vengeance ability triggers and is placed on the stack above that spell. The damage is dealt to all opponents before the original spell resolves.

Common Pitfalls

A common mistake is forgetting that Unreliable Visions is not optional; if you have a card in hand, you must discard one. However, you are not penalized if your hand is empty; the ability simply does nothing. Additionally, remember that Undying Vengeance only cares about where the spell is cast from, not where the card was originally located before it moved to that zone.

Interaction examples

Cycling Your Hand

During your first main phase, you have a land in your hand that you do not need. The Unreliable Visions ability triggers. You discard the land card to the graveyard. Because you successfully discarded a card, you now draw a new card from the top of your library.

Empty Hand Interaction

If you start your first main phase with zero cards in hand, Unreliable Visions still triggers and goes on the stack. Upon resolution, since you have no cards to discard, the 'If you do' condition is not met, and you do not draw a card.

Casting from the Graveyard

If you cast a spell with an ability like Flashback or Escape from your graveyard, Shadow of the Goblin sees that the spell was cast from a zone other than your hand. Undying Vengeance triggers, dealing 1 damage to each opponent before your spell resolves.

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