As long as Trinisphere 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 colour of mana or colourless mana. For example, a spell that would cost to cast costs to cast instead.)

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Format Legality
1v1 Commander Legal
Block Constructed Legal
Canadian Highlander Legal
Casual Legal
Commander / EDH Legal
Custom Legal
Duel Commander Legal
Highlander Legal
Legacy Legal
Leviathan Legal
Limited Legal
Modern Legal
Oathbreaker Legal
Tiny Leaders Legal
Unformat Legal
Vintage Legal

Trinisphere occurrence in decks from the last year

Latest Decks as Commander

Trinisphere Discussion

plakjekaas on It's time Hybrid mana is …

2 weeks ago

I'm against it.

"as the entire point of hybrid cards was that they represented an "or" state rather than an "and" state."

If we'd extrapolate that, we'd be able to play Reaper King in a Hope of Ghirapur deck. Because its color identity is colorless, or mono white, or sultai, or... well anything you like. Meanwhile, the mana cost has undeniably hidden in it's cost. And it's a slippery slope. Phyrexian mana was also designed for flexibility to reach out of your color restraints. Should the colour identity of Noxious Revival be colorless too? I wouldn't be keen to explain the rules of color identity to new or inexperienced players: basically, it's the colors you can find on the card, either in the mana cost or the rules text. Except when the mana symbols look wonky, there's separate rules for those.

There's already the nuisance of having to explain that reminder text (italic, in parentheses) does not define color identity. Trinisphere is not a black card, and Blind Obedience is not an Orzhov card. Let's not expand that to the actual rules texts please.

RNR_Gaming on Urza’s Pet Dragon

2 weeks ago

Well, I highly suggest picking up these stax cards like Winter Orb , Static Orb , Trinisphere and Storage Matrix .

For a less competitive scene Watchdog , Genesis Chamber , Blinkmoth Urn and Howling Mine

The dragon breaks parity with all of those cards :)

Epicurus on Card creation challenge

1 month ago

Spelltithe General

Creature - Human Advisor

Each spell that opponents control that would cost less than three mana to cast costs three mana to cast, unless their controller has you draw a card


Kind of a mashup of Trinisphere and Rhystic Study on a stick, but I think it makes sense in white because of the taxation theme. I think it would become a commander staple, and much needed help for mono white. Probably broken, but not any more so than the others.

Next challenge, do the red one. See previous challenge for reference.

Polaris on Trinisphere vs. Replicate

1 month ago

Okay, this is a little odd because of the way Trinisphere looks at costs. Usually, things go by converted mana cost (as of Strixhaven, mana value), which is the total value of the mana symbols. Trinisphere, however, takes the total amount of mana spent to cast the spell and makes sure that number is at least 3. This includes things like kicker and replicate costs, so you can add those into the amount Trinisphere sees.

Replicate is an ability of the spell that allows you to pay an additional cost. It's not casting another spell, so Trinisphere won't tax it—pretty much the opposite, in fact. Here's how much it will cost to cast Gigadrowse with Trinisphere in play:

  • Cast with no replication:
  • Cast with 1 replicate:
  • Cast with 2 replicate:
  • Cast with 3 replicate:

And so on.

Icbrgr on Trinisphere vs. Replicate

1 month ago


  • Trinisphere is on the battlefield and I have mana available to me and pass the turn to my opponent.

  • In response to the end of my opponents draw/untap beginning phase; I cast Gigadrowse to all of his/her lands.


How much mana do I need to initially cast Gigadrowse; and how much mana is needed to copy the spell each time beyond the first?

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