Trusty Retriever 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

When this creature enters, choose one — • Put a +1/+1 counter on this creature. • Return target artifact or enchantment card from your graveyard to your hand.

Complete guide

Trusty Retriever is a versatile white creature that provides utility the moment it hits the battlefield. Whether you need a stronger attacker or a way to recover your best tools from the graveyard, this loyal Dog has you covered.

Choose Your Utility

Trusty Retriever features an 'enters' triggered ability that offers a modal choice. You must choose one of the two options at the time the ability is put onto the stack. If you choose the second mode, you must also choose a legal target artifact or enchantment card in your graveyard at that time.

How the Ability Resolves

When Trusty Retriever enters the battlefield, the ability triggers. First, you choose which mode to use. If you pick the +1/+1 counter, the Retriever becomes a 3/3 upon resolution. If you pick the recursion mode, the targeted card moves from your graveyard to your hand as the ability resolves. If the chosen target is no longer in the graveyard when the ability tries to resolve, the ability fails to resolve and nothing happens.

Strategic Timing

As a four-mana creature, Trusty Retriever is best played when you can maximize its 'enters' trigger. While a 3/3 is decent, its true value lies in returning high-impact artifacts or enchantments that your opponent has already dealt with, allowing you to grind out card advantage in the mid-to-late game.

Common Mistakes

Remember that you cannot change your mind about which mode you picked once the ability is on the stack. Additionally, the Retriever cannot return itself to your hand if it somehow dies in response to its own trigger, as it is a creature card, not an artifact or enchantment card.

Interaction examples

Double the Fetching

Roaming Throne

If you have Roaming Throne on the battlefield with 'Dog' chosen as the creature type, Trusty Retriever will trigger twice when it enters. You can choose to put two +1/+1 counters on it, return two cards to your hand, or do one of each.

The Golem Cycle

Solemn Simulacrum

If your Solemn Simulacrum has been destroyed, you can play Trusty Retriever and choose the second mode. Target the Solemn Simulacrum in your graveyard. Upon resolution, the Simulacrum returns to your hand, allowing you to cast it again for more land ramp and card draw.

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