Bloodline Necromancer 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

Lifelink When this creature enters, you may return target Vampire or Wizard creature card from your graveyard to the battlefield.

Complete guide

Bloodline Necromancer is a powerful tribal support card that bridges the gap between the Vampire and Wizard archetypes. With its ability to resurrect fallen allies immediately upon entering the battlefield, it provides both a board presence and instant value through its Lifelink keyword.

What It Does

Bloodline Necromancer is a 3/2 creature with Lifelink that costs five mana. Its primary utility comes from its 'enters' triggered ability, which allows you to target a Vampire or Wizard creature card in your graveyard and return it directly to the battlefield. Note that this ability is optional, as the text uses the word 'may'.

How It Resolves Step by Step

First, the Bloodline Necromancer spell must resolve and enter the battlefield. Once it is on the field, its triggered ability is put onto the stack, and you must choose a valid target (a Vampire or Wizard card) from your graveyard at that time. If the target is still in the graveyard when the ability resolves, that card is moved from the graveyard to the battlefield under your control.

Common Mistakes

A common error is attempting to return a creature that does not share the Vampire or Wizard subtype. While Bloodline Necromancer itself is both, it cannot return other types like Golems unless they have been modified to be Wizards or Vampires. Additionally, because the ability targets, if the opponent removes the targeted card from your graveyard in response, the ability will fail to resolve and nothing will be returned.

When to Play It

This creature is best utilized in the mid-to-late game once you have established a graveyard containing high-value Wizards or Vampires. Because it has Lifelink, it is also a useful defensive tool against aggressive decks, helping you stabilize your life total while rebuilding your board state.

Interaction examples

Doubling the Resurrection

Roaming Throne

If you control Roaming Throne and chose 'Vampire' or 'Wizard' as it entered, Bloodline Necromancer's ability will trigger an additional time. This allows you to target and return two creature cards from your graveyard to the battlefield instead of just one.

Type Restrictions

Solemn Simulacrum

If Solemn Simulacrum is in your graveyard, Bloodline Necromancer cannot target it because Solemn Simulacrum is a Golem, not a Vampire or a Wizard. You would need a different card that meets the specific type requirements to use the Necromancer's ability.

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