Trinisphere
Artifact
SLDSecret Lair Drop#1485★mythic
BorderlessFull ArtRainbow Foil
- Finishes
- Foil
- Border
- borderless
- Security stamp
- triangle
- Frame
- 2015 · Full art
- Pull rate
- about 1 per booster
- Illustrator
- AKQA
- Found in
- Secret Lair Drop Secret Lair x Fallout Vault Boy Rainbow Foil
CommanderLegalModernLegalStandardNot legal
Format legality
Constructed
StandardNot legal
PioneerNot legal
ModernLegal
LegacyLegal
VintageRestricted
PauperNot legal
Commander
CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHLegal
OathbreakerLegal
Tiny LeadersLegal
Arena
AlchemyNot legal
HistoricNot legal
TimelessNot legal
BrawlNot legal
Standard BrawlNot legal
Competitive BrawlNot legal
GladiatorNot legal
Other
PremodernNot legal
Old SchoolNot legal
Penny DreadfulNot legal
Future StandardNot legal
As long as this artifact is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost 
to cast costs 
to cast instead.)
to cast costs to cast instead.)Plays as:
Tax Effect
Market · per finishspark updated 35m ago · prices as of 2026-08-30
TCGplayerFinish
Market
Δ 30D · Trend
Low
Buylist
Buy / Sell Gap
Buy
Foil
$32.61
+30.9%
Since Apr 2024:H $32.61L $4.86$30.07
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Rulings
2 · latest Aug 7, 2020
- WotCAug 7, 2020
If Trinisphere leaves the battlefield or becomes tapped or untapped as a cost to cast a spell, this cost is paid after you've locked in the total cost.
- WotCAug 7, 2020
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. Finally, apply Trinisphere's effect if the mana component of the spell's cost is less than three mana. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.