Primary Research 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 enchantment enters, return target nonland permanent card with mana value 3 or less from your graveyard to the battlefield. At the beginning of your end step, if a card left your graveyard this turn, draw a card.
How it works : Primary Research
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
If a card in a graveyard has
in its mana cost, X is 0 for the purpose of determining its mana value.
No other card is named in this ruling.
- #2· Wizards of the Coast
Primary Research's last ability will check as your end step starts to see if any cards have left your graveyard this turn. If none did, the ability won't trigger at all. It's not possible to remove cards from your graveyard during your end step in time to have the ability trigger.
No other card is named in this ruling.
Legal formats
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Meta decks with Primary Research
No archived Top 8 deck with this card yet.




