Quick Answer

Octavia, Living Thesis is a rare Legendary Creature — Elemental Octopus from C21 (C21) costing {8}{U}{U}. Current price: $0.37 USD. Legal in Commander.

Octavia, Living Thesis MTG card

Octavia, Living Thesis

Legendary Creature — Elemental Octopus

Card Text

This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard. Ward {8} Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.

Card Stats

8/8 rare CMC: 10.0 C21 C21 🎨 Simon Dominic
Magecraft Ward

Market Prices

TCGPlayer
$0.37
Normal
Buy
Card Kingdom
$0.69
Normal
Buy
Cardmarket
€0.64
Normal
Buy
Cardmarket
€0.24
Foil
Buy
Prices updated: 2025-12-04

Format Legality

Commander Legal
Duel Legal
Legacy Legal
Oathbreaker Legal
Vintage Legal

Similar Cards

Other Printings (4 total)

Community Stats

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Decks Using This Card
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Comments

Often Played With

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Frequently Asked Questions

What is Octavia, Living Thesis? Basics

Octavia, Living Thesis is a Legendary Creature — Elemental Octopus card from the Magic: The Gathering trading card game.

Its ability reads: "This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard. Ward {8} Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn."

How much mana does Octavia, Living Thesis cost to cast? Basics

Octavia, Living Thesis has a mana cost of {8}{U}{U}, which equals 10.0 total mana (converted mana cost/mana value).

It requires U mana to cast.

What does mana cost mean in Magic: The Gathering? Basics

Mana cost is the amount and type of mana required to cast a spell in Magic: The Gathering.

Octavia, Living Thesis's mana cost of {8}{U}{U} means you need to pay that much mana from your lands or other sources.

Colored symbols (W=White, U=Blue, B=Black, R=Red, G=Green) must be paid with that specific color, while numbers can be paid with any color.

What is converted mana cost (CMC) or mana value? Basics

Converted mana cost (now officially called "mana value") is the total amount of mana in a card's mana cost, regardless of color.

Octavia, Living Thesis has a mana value of 10.0. This is important for effects that care about a spell's total cost, like cascade or cards that say "mana value 3 or less."

What is oracle text? Basics

Oracle text is the official, current rules text for a Magic card as maintained by Wizards of the Coast. It supersedes any printed text on older cards.

Octavia, Living Thesis's current oracle text is: "This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard. Ward {8} Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn."

What is the current price of Octavia, Living Thesis? Pricing

The current market price for Octavia, Living Thesis is approximately $0.37 USD on TCGPlayer.

On Cardmarket (Europe), it's approximately €0.64 EUR.

Where can I buy Octavia, Living Thesis? Pricing

You can purchase Octavia, Living Thesis from major MTG retailers including:

Prices vary by condition and printing. Check multiple sellers to find the best price.

What is the difference between normal and foil cards? Pricing

Foil cards have a shiny, holographic finish that makes them more collectible. They are functionally identical to normal cards but typically cost more due to their rarity and visual appeal.

Is Octavia, Living Thesis legal in Standard? Legality

Format legality information for Octavia, Living Thesis in Standard is not available.

Standard is a rotating format that only allows cards from the most recent sets.

Is Octavia, Living Thesis legal in Modern? Legality

Format legality information for Octavia, Living Thesis in Modern is not available.

Modern includes all cards printed in a standard-legal set from 8th Edition forward.

Is Octavia, Living Thesis legal in Commander (EDH)? Legality

Octavia, Living Thesis is Legal in Commander (EDH) format.

Commander is a casual multiplayer format where you build a 100-card singleton deck around a legendary creature.

Is Octavia, Living Thesis legal in Pioneer? Legality

Format legality information for Octavia, Living Thesis in Pioneer is not available.

Pioneer is a non-rotating format that includes all standard-legal sets from Return to Ravnica forward.

Is Octavia, Living Thesis legal in Legacy? Legality

Octavia, Living Thesis is Legal in Legacy format.

Legacy allows almost all cards ever printed, with a substantial ban list for balance.

Is Octavia, Living Thesis legal in Vintage? Legality

Octavia, Living Thesis is Legal in Vintage format.

Vintage is the most permissive format, allowing almost all cards with only a minimal ban list. Some powerful cards are "Restricted" (limited to 1 copy).

Is Octavia, Living Thesis legal in Pauper? Legality

Format legality information for Octavia, Living Thesis in Pauper is not available.

Pauper only allows cards that have been printed at common rarity in a paper or online set.

What is format legality in MTG? Legality

Format legality indicates which official MTG formats allow a card to be played:

  • Legal: Card is allowed in the format
  • Banned: Card is prohibited from play
  • Restricted: Limited to 1 copy (Vintage only)
  • Not Legal: Card was never part of that format's card pool

Different formats have different banned lists based on power level and game balance.

What set is Octavia, Living Thesis from? Details

This printing of Octavia, Living Thesis is from C21 (C21), with collector number 29.

Octavia, Living Thesis may also appear in other MTG sets with different art or special treatments.

What is Octavia, Living Thesis's rarity? Details

Octavia, Living Thesis is a rare card in C21.

Card rarity affects both availability and price. From rarest to most common: Mythic Rare → Rare → Uncommon → Common.

Who illustrated Octavia, Living Thesis? Details

Octavia, Living Thesis was illustrated by Simon Dominic.

Magic: The Gathering features artwork from hundreds of talented artists, and many cards have been reprinted with new art over the years.

What is Octavia, Living Thesis's power and toughness? Details

Octavia, Living Thesis is a 8/8 creature.

Power (8) determines how much combat damage the creature deals. Toughness (8) determines how much damage it can take before being destroyed.

💬 Card Discussion

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