Stupefy

Stupefy is a common-rarity spell card from Riftbound's Origins expansion. It costs 1 Energy to cast as a one-shot effect. Aligned with the Mind domain. The card uses the Reaction keyword. It sees significant competitive play, appearing in roughly 82% of tracked tournament decks.

1 Energy | Spell | Mind | common | Origins

Rules Text

[Reaction] (Play any time, even before spells and abilities resolve.) Give a unit -1 Might this turn, to a minimum of 1 Might. Draw 1.

Keywords

Domain: Mind

Meta Statistics

Inclusion Rate: 82.0% | Win Rate: 51.0%

Related FAQ (8)

What does it mean to “kill a unit with a spell?" It seems like Hidden Blade counts, but what about a spell that deals damage? A spell that causes a unit to deal damage? A spell that causes a unit to die in some other way, like Stupefy on a unit that has 1 more Might than it has damage currently marked on it?

This is unclear under existing rules, so the updated rules will clarify. “When you kill a unit with a spell" triggers immediately after a spell you control resolves if either of the following is true: 1. That spell instructs you to kill a unit during its resolution, and that unit is put into the trash this way. 2. A spell instructs you to deal damage to a unit during its resolution, and that unit is put into the trash during the cleanup immediately following that spell's resolution. This includes “direct kill" spells you control like Hidden Blade. It also includes damage spells like Void Seeker, provided they mark lethal damage on the unit that immediately causes it to die. In all cases, the unit has to actually die—if that death is replaced by a card like Unlicensed Armory, then you didn't kill a unit with a spell. Notably, the following do not count as you killing a unit with a spell: ● You are instructed to kill a unit by a spell another player controls, even if the spell instructs you to kill the unit (e.g., another player's Cull the Weak). ● Another player is instructed to kill a unit by a spell you control (e.g., your Cull the Weak, if you don't kill any of your own units with it). ● You play a spell like Challenge that causes a unit to deal lethal damage to another unit. ● You use a spell to mark damage on a unit and the unit dies later in the turn, even if that damage later became lethal damage for any reason. ● You use a spell to directly or indirectly lower the Might of a unit, causing damage it's already taken to become lethal damage. For example: ○ You use a spell like Stupefy to lower the Might of a unit that has already taken damage, causing that damage to become lethal damage. ○ You use a spell like Charm to move a unit with damage on it away from Trifarian War Camp, indirectly lowering its Might and causing that damage to become lethal damage. ○ You use a spell like Rebuke to return Lee Sin, Centered to its owner's hand, indirectly lowering the Might of a buffed unit at the same battlefield that has damage on it, causing that damage to become lethal damage. ● You do anything else with a spell that causes a unit to die in any other way than the two methods listed above, or at any time other than during or immediately after the spell's resolution. ● You do any of the above, but the unit doesn't actually die.

I heard that cards that reduce Might will no longer say "to a minimum of 1" on them. Does that mean Origins cards like Stupefy will receive errata?

No. This is a change to our design philosophy beginning with Spiritforged, but Origins cards will maintain their functionality.

What about casting Stupefy while I have an empowered Mel, Newly Awakened?

The chosen unit is given -2 Might, to a minimum of 1 Might. A replacement effect that replaces an event inherits any modifications the generating effect put on that event — Stupefy's "to a minimum of 1 [M]" carries over to the replaced -2 Might event.

If I gain control of my opponent's Stupefy with Rebuttal, does Ravenbloom Student trigger? What do Battering Ram and Legion see?

Ravenbloom Student triggers (twice, counting your Rebuttal) because it checks whether a spell you control resolves — and the stolen Stupefy resolved under your control. Battering Ram and Legion instead check who finalized cards: you never finalized Stupefy, so your Battering Ram only gets a discount for the cards you finalized yourself, and your opponent's Legion abilities remain active.

What happens when I conquer with Swain, Visionary if I've only played a Patched Porobot and Stupefy this turn?

You score 1 point. Swain checks whether you've played a non-token unit, a non-token gear, and a spell — checks like that don't care whether multiple conditions were satisfied by a single card.

What happens if I play Stupefy on my 1 Might empowered Gangplank, Naval? Will he get +3 Might this turn?

He will not. Stupefy on a 1 Might unit gives -0 Might — the amount is snapshotted — so the event of him being given -Might never occurs, and Gangplank's replacement effect has nothing to replace.

If I play Dragon Form on a unit that has -1 Might from Stupefy, does my Fiora, Grand Duelist trigger?

No. Dragon Form sets base Might via the Trait-Altering layer, and layers (Trait-Altering, then Ability-Altering, then Arithmetic, where Stupefy's -1 applies) are evaluated instantaneously when the effect is applied. There is no moment where the unit is 5 Might before dropping to 4, so Fiora never sees a 5+ Might unit.

My 11 Might Renekton, Brute is disempowered by my own Profiteer. Does his ability trigger when his Might changes?

No. "10 or more" is a state, and Renekton's trigger checks for the event of him becoming that state — his Might must previously have been below 10. If he stays at 10 or more throughout, he never "becomes" 10 or more, whether the change comes from an enemy Stupefy or from activating his own ability.

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