Trial // Error
C16Commander 2016/#239/2016UncommonReprint
Colour IDMV 4
Current paper retail
Card Kingdom$0.35
Cardmarket€0.12
ManaPool$0.15
TCGplayer$0.15
Paper retail history (USD)
3 providers
Latest $0.35High $0.35Low $0.35▲ 0.0%
Market and collecting
Market overview
$0.15TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-09
7d▲ 0.0%30d▲ 0.0%90d▲ 15.4%
90d high
$0.15
90d low
$0.13
Paper printings priced
2
Currently 1st
Cheapest paper printing
$0.15
Commander 2016
- Up 0.0% over the last 30 days on TCGplayer.
- Trading at or near its 90 day high of $0.15.
- This is the cheapest paper printing of the card currently priced (2 priced in total).
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
Collect
Play
Compare printings (2 priced)
Gameplay and rules
Split. Cast either half
Trial
Instant
Return all creatures blocking or blocked by target creature to their owner's hand.
Error
Instant
Counter target multicolored spell.
Card capabilities
Instant
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (7)
wotc8 Dec 2022
A split card's characteristics are a combination of its two halves while it is not on the stack. For example, Assault // Battery has a mana value of 5 while it is in your library. If an effect allows you to search your library for a card with mana value 4 or less, you can't find Assault // Battery.
wotc8 Dec 2022
Each split card is a single card. For example, if you discard a split card, you've discarded one card, not two. If an effect counts the number of sorcery cards in your graveyard, Assault // Battery counts once, not twice.
wotc8 Dec 2022
Each split card has two names. If an effect instructs you to choose a card name, you may choose one of those names, but not both.
wotc8 Dec 2022
If an effect allows you to cast a spell with certain characteristics, consider only the characteristics of the half you're casting. For example, if an effect allows you to cast a sorcery spell with mana value 2 or less from among cards in your graveyard, you could cast Assault this way, but not Battery.
wotc8 Dec 2022
If you copy a spell that's half of a split card, the copy copies that same half. For example, if you copy Assault, the copy is also Assault, not Battery.
wotc8 Dec 2022
To cast a split card, choose one of its halves to cast. There's no way to cast both halves of this split card.
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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
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About this card
Trial // Error
Trial // Error is an Instant // Instant, with mana cost {W}{U}//{U}{B} (mana value 4). Printed 2 times across MTG sets.
Format legality: Commander: legal, Modern: legal, Standard: not_legal, Pioneer: not_legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $0.15 (up 0.0% over 30 days).
Frequently asked
Trial // Error FAQ
How much is Trial // Error worth?
The current TCGplayer USD retail price for Trial // Error is $0.15. It is up 0.0% over the last 30 days. Over 90 days it has ranged from $0.13 to $0.15.
What is the cheapest printing of Trial // Error?
The cheapest currently priced paper printing is from Commander 2016 at $0.15 on TCGplayer.
What is the most expensive printing of Trial // Error?
The most expensive currently priced paper printing is from Dissension at $0.28 on TCGplayer.
How many printings of Trial // Error are there?
Trial // Error has been printed 2 times in English paper sets that MTGPrices tracks.
What set was Trial // Error first printed in?
The earliest English paper printing that MTGPrices tracks is from DIS #158, released 2006-05-05.
What is the newest printing of Trial // Error?
The most recent English paper printing that MTGPrices tracks is from C16 #239, released 2016-11-11.
Is Trial // Error legal in Commander?
Yes, Trial // Error is currently legal in Commander per Scryfall's legality feed.
Is Trial // Error legal in Modern?
Yes, Trial // Error is currently legal in Modern per Scryfall's legality feed.