Trinisphere
Artifact{3}
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 {1}{B} to cast costs {2}{B} to cast instead.)
Colour identity Colorless
In short
Trinisphere has 7 listed printings; the most valuable is the printing from MPS at US$166.71 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
Every Trinisphere printing
Trinisphere
MPS · 52
TCGplayer market
US$166.71
Secret Lair
Trinisphere
SLD · 2838
TCGplayer market
US$49.99
Trinisphere
V09 · 15
TCGplayer market
US$43.27
Trinisphere
DST · 154
TCGplayer market
US$38.11
Trinisphere
2XM · 303
TCGplayer market
US$35.04
Secret Lair · Rainbow Foil
Trinisphere
SLD · 1485★
TCGplayer market
US$33.74
Secret Lair
Trinisphere
SLD · 1485
TCGplayer market
US$33.42