Skip to content

Invasion of Segovia // Caetus, Sea Tyrant of Segovia

~$1.31 low · ~$3.17 high

Buy on TCGplayerTCGplayer, eBay and Amazon links are affiliate links. We may earn a commission if you buy.

Blue. Battle — Siege // Legendary Creature — Serpent

two generic manaone blue mana

0063 · MOM · R · ENWhat the codes mean

Invasion of Segovia // Caetus, Sea Tyrant of Segovia

March of the Machine #63 · Illustrated by Edgar Sánchez Hidalgo

What is Invasion of Segovia // Caetus, Sea Tyrant of Segovia worth?

Cheapest copy

~$1.31

Non-foil · March of the Machine #63

Buy on TCGplayer

Highest TCGplayer price

~$3.17

Promo foil · March of the Machine Promos #63s

Buy on TCGplayer

TCGplayer, eBay and Amazon links are affiliate links. We may earn a commission if you buy.

3 prices from $1.31 to $3.17. Every price is in the printings table below.

TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.

Oracle text

Invasion of Segovia

two generic manaone blue mana

Battle — Siege

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When this Siege enters, create two 1/1 blue Kraken creature tokens with trample.

Defense 4

Caetus, Sea Tyrant of Segovia

Legendary Creature — Serpent

Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for one generic mana or one mana of that creature's color.)

At the beginning of your end step, untap up to four target creatures.

3/3

All 2 printings of Invasion of Segovia // Caetus, Sea Tyrant of Segovia

PrintingRarityNon-foilFoilCardmarket (EUR)My collection
March of the Machine Promos #63s
March of the Machine Promos
pmom #63s· 2023Promorare· Cardmarket €1.85 foil
rareNo non-foil printing$3.17€1.85 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 Invasion of Segovia // Caetus, Sea Tyrant of Segovia

As an Amazon Associate we earn from qualifying purchases. We also take part in the TCGplayer (via Impact) and eBay Partner Network affiliate programs. Links to TCGplayer, eBay and Amazon are affiliate links: if you buy through them we may earn a commission at no extra cost to you. Cardmarket links are not affiliate links.

Card details

First printed
2023
Printings
2
Mana value
3
EDHREC rank
#5,656 on EDHREC (Commander popularity)
Keywords
Transform
Artist
Edgar Sánchez Hidalgo

What the codes mean

The small print at the bottom of the March of the Machine card (#63).

0063 · MOM · R · EN

  • 0063Collector number: this card's place in the set list.
  • MOMSet code for March of the Machine
  • RRare
  • ENPrinted in English

How to read a Magic card: every part and code, on real cards.

Rulings (23)

  1. April 14, 2023

    If a battle that's being attacked somehow stops being a battle, it is removed from combat. Similarly, if its controller changes in the middle of combat, it is removed from combat.

  2. April 14, 2023

    If a permanent that is represented by a transforming double-faced card becomes a copy of a Siege, it will be exiled as that Siege's triggered ability resolves, then it will be cast transformed. Note that this applies only to transforming double-faced cards, not to modal double-faced cards that can normally be played using either face.

  3. April 14, 2023

    If a token or a card that isn't represented by a transforming double-faced card becomes a copy of a Siege, it can't be cast as its triggered ability resolves. It will remain in exile. If it's a token, it will cease to exist the next time state-based actions are performed.

  4. April 14, 2023

    Battles can't attack or block, even if one also becomes a creature. If an attacking or blocking creature somehow becomes a battle in addition to being a creature, it is removed from combat.

  5. April 14, 2023

    In a multiplayer game, if the protector of a battle leaves the game and that battle is not currently being attacked, its controller chooses a new protector for it as a state-based action. If it is being attacked, its controller chooses a new protector for it once no creatures are attacking it. This means that it continues to be attacked and can be dealt combat damage as normal.

  6. April 14, 2023

    A Siege's controller can't be its protector. If a Siege's protector ever gains control of it, they choose a new player to be its protector. This is a state-based action.

  7. April 14, 2023

    A battle's "defense" is displayed in the bottom right corner of the card. A battle enters the battlefield with that number of defense counters. If another permanent enters the battlefield as a copy of a battle, it also enters with that number of defense counters.

  8. April 14, 2023

    Sieges each have an intrinsic triggered ability. That ability is "When the last defense counter is removed from this permanent, exile it, then you may cast it transformed without paying its mana cost."

  9. April 14, 2023

    If a battle has no defense counters, and it isn't the source of a triggered ability that has triggered but not yet left the stack, that battle is put into its owner's graveyard. This is a state-based action. This doesn't cause a Siege's intrinsic triggered ability to trigger.

  10. April 14, 2023

    As a Siege enters the battlefield, its controller chooses an opponent to be its protector.

  11. April 14, 2023

    If a Siege never had defense counters on it (perhaps because a permanent became a copy of one), it can't have its last defense counter removed. It will be put into its owner's graveyard. You won't exile it or cast the other face.

  12. April 14, 2023

    A battle can be attacked by all players other than its protector. Notably, this means a Siege's controller can attack it.

  13. April 14, 2023

    If a non-battle permanent that is already on the battlefield become a copy of a Siege, its controller chooses one of their opponents to be that battle's protector. However, it will most likely be put into its owner's graveyard because it has no defense counters (see below).

  14. April 14, 2023

    Damage dealt to a battle causes that many defense counters to be removed from it.

  15. April 14, 2023

    A battle can be dealt damage and be target of spells and/or abilities that target "any target."

  16. April 14, 2023

    Only creatures controlled by a battle's protector can block creatures that are attacking that battle. This means a Siege's controller can never assign creatures to block for it.

  17. April 14, 2023

    If you sacrifice Caetus while casting a noncreature spell (say, to activate a mana ability), the spell won't have convoke when you pay its costs unless it has convoke some other way.

  18. January 12, 2024

    When calculating a spell's total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated. Convoke doesn't change a spell's mana cost or mana value.

  19. January 12, 2024

    You can tap any untapped creature you control to convoke a spell, even one you haven't controlled continuously since the beginning of your most recent turn.

  20. January 12, 2024

    If a creature you control has a mana ability with tap this permanent in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped before you pay the spell's costs. You won't be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for convoke.

  21. January 12, 2024

    Tapping an untapped creature that's attacking or blocking to convoke a spell won't cause that creature to stop attacking or blocking.

  22. January 12, 2024

    Tapping a multicolored creature using convoke will pay for one generic mana or one mana of your choice of any of that creature's colors.

  23. January 12, 2024

    Because convoke isn't an alternative cost, it can be used in conjunction with alternative costs.

Browse more: March of the Machine · all sets · search cards