Innocuous Researcher 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
Parley — Whenever this creature attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card. At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn.
Complete guide
Meet Innocuous Researcher, a Centaur Detective that rewards your curiosity while preparing your mana for your opponents' turns. This card combines the collaborative Parley mechanic with a powerful untap effect that demands careful timing. Whether you are hunting for clues or setting up defensive maneuvers, this researcher is a versatile addition to any green deck.
Gathering Clues with Parley
When Innocuous Researcher attacks, its Parley ability triggers. Every player reveals the top card of their library; for every nonland card shown, you create a Clue token (Investigate). Afterward, everyone draws the card they just revealed. This means you gain board presence and information simultaneously, ensuring you have the resources needed to solve the game's puzzles.
The End Step Trade-Off
At the start of your end step, you face a choice: you may untap all your lands. If you choose to do so, you gain a massive mana advantage for activated abilities, but you are strictly prohibited from casting spells until your next turn begins. This includes instants, spells with Flash, or even special actions that involve casting. Once you choose to untap, the restriction sticks even if Innocuous Researcher leaves the battlefield.
Step-by-Step Resolution
1. Move to the Beginning of End Step. 2. The ability triggers and you choose whether to untap your lands. 3. If you untap, the restriction immediately applies. 4. You pass priority. Note that there is no window to cast an Instant after the untap but before the 'can't cast' restriction applies. If you want to cast something, you must do it before the end step ability resolves.
When to Play It
Innocuous Researcher is best in decks that rely on activated abilities rather than spells for interaction. Since you can't cast spells after untapping, use that mana to crack Clue tokens, activate creature abilities, or use utility lands. It is a fantastic tool for midrange strategies that want to keep blockers or interactive abilities ready while still developing their board.
Interaction examples
Innocuous Researcher
Solemn SimulacrumYou attack with Innocuous Researcher. You reveal a forest and your opponent reveals Solemn Simulacrum. Since Solemn Simulacrum is a nonland card, you Investigate once. Then, both players draw the revealed cards. You have now drawn a land and gained a Clue to use later.
Eternal WitnessIt is your end step. You have Eternal Witness in hand. If you want to play her (assuming she has Flash from another effect) and still untap your lands, you must cast her while the Innocuous Researcher's trigger is still on the stack. If you allow the ability to resolve and untap your lands, you can no longer cast Eternal Witness until your next turn.
ClueAfter untapping all your lands at the end step, you are restricted from casting spells. However, you can use your newly untapped lands to pay the {2} mana cost to sacrifice your Clue tokens and draw cards. This is a perfectly legal way to spend your mana during your opponent's turn since activating an ability is not 'casting a spell'.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Innocuous Researcher
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
Except in some very unusual cases, the card each player reveals is the one they’ll draw.
No other card is named in this ruling.
- #2· Wizards of the Coast
There’s no window for you to cast spells after untapping all lands you control but before the “you can’t cast spells” portion of Innocuous Researcher’s last ability takes effect. Once that ability resolves, it doesn’t matter whether Innocuous Researcher stays on the battlefield; you’ll still be unable to cast spells until your next turn begins.
No other card is named in this ruling.
- #3· Wizards of the Coast
Clue is an artifact type. Even though it appears on some cards with other permanent types, it’s never a creature type, a land type, or anything but an artifact type.
Card named in this ruling
- #4· Wizards of the Coast
If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth’s activated ability.
Card named in this ruling
- #5· Wizards of the Coast
You can’t sacrifice a Clue to pay multiple costs. For example, you can’t sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth’s ability.
Card named in this ruling
- #6· Wizards of the Coast
Some spells and abilities that investigate may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won’t resolve. You won’t create any Clue tokens.
Card named in this ruling
- #7· Wizards of the Coast
Some abilities trigger “whenever you sacrifice a Clue”. Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clue’s activated ability.
Card named in this ruling
Related cards and tokens
Legal formats
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Meta decks with Innocuous Researcher
No archived Top 8 deck with this card yet.