Tester of the Tangential
~$0.21 low · ~$0.23 high
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Blue. Creature — Djinn Wizard

Secrets of Strixhaven #69 · Illustrated by Lorenzo Mastroianni
What is Tester of the Tangential worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
At the beginning of combat on your turn, you may pay . When you do, move X +1/+1 counters from this creature onto another target creature.
1/1
Format legality
The only printing of Tester of the Tangential
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
Secrets of Strixhaven sos #69· 2026uncommon· Cardmarket €0.12 · €0.05 foil | uncommon | $0.23 | $0.21 | €0.12€0.05 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Tester of the Tangential
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Card details
- First printed
- 2026
- Printings
- 1
- Mana value
- 2
- EDHREC rank
- #19,984 on EDHREC (Commander popularity)
- Keywords
- Increment
- Artist
- Lorenzo Mastroianni
What the codes mean
The small print at the bottom of the Secrets of Strixhaven card (#69).
0069 · SOS · U · EN
- 0069Collector number: this card's place in the set list.
- SOSSet code for Secrets of Strixhaven
- UUncommon
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (7)
March 20, 2026
An increment ability will only trigger if the permanent it's on is a creature. Similarly, if the permanent is no longer a creature when its increment ability resolves, the ability won't do anything.
March 20, 2026
When comparing the mana spent to the creature's stats as the increment ability resolves, it's possible that the stat that is less than the mana spent changes from power to toughness or vice versa. For example, say you control a 1/3 creature with increment and you pay two mana to cast a spell. Since the amount of mana you spent is greater than the creature's power, increment will trigger. While the increment ability is on the stack, an effect gives the creature with increment +2/-2, making it a 3/1. When the increment ability resolves, the creature will still get a +1/+1 counter since the amount of mana you spent is greater than that creature's toughness.
March 20, 2026
If increment triggers, the comparison will happen again when the ability tries to resolve. If the amount of mana spent to cast that spell isn't greater than either of that creature's stats anymore, the ability will do nothing.
March 20, 2026
Whenever you cast a spell, check the amount of mana you spent to cast it against the power and toughness of the creature with increment. If the amount of mana you spent isn't greater than either of that creature's stats, increment won't trigger at all.
March 20, 2026
To move a counter from one creature to another, the counter is removed from the first creature and put onto the second. Any abilities that care about a counter being removed from or placed on a creature will apply.
March 20, 2026
You don't choose a target for Tester of the Tangential's last ability at the time it triggers. Instead, a second "reflexive" ability triggers whenever you pay
this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.
March 20, 2026
The increment ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack.
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