Install DigiFoundry for a faster, full-screen experience. Install this app — tap Share, then Add to Home Screen.

Artwork variants

6 printings of BT21-029. They are the same card for deck building — any of them fills the slot.

BT21-029 SR
BT21-029_P1 SR
BT21-029_P2 SR
BT21-029_P3 SR
BT21-029_P4 SR
BT21-029_P5 SR

Medusamon

BT21-029 Digimon Red SR
Level
Lv.6
Play Cost
12
DP
12,000
Form
Mega
Attribute
Virus
Traits
Dragonkin/LIBERATOR
Digivolves From
Lv.5 · Red · digimon · Cost 4
Set
BT21

Effect

Security A. +1 Progress (While attacking, your opponent's effects don't affect this Digimon.)

When Digivolving End of Attack Once Per Turn You may delete 1 of your opponent's lowest DP Digimon.

All Turns Once Per Turn When any of your opponent's Digimon are deleted or their security stack is removed from, they play 1 [Petrification] Token. (Digimon/white/3000 DP/Your Turn This Digimon can't suspend. On Deletion Trash your top security card.)

Track this card

Record how many copies of BT21-029 you own and DigiFoundry shows which are in decks, which are up for trade and which are actually available.

Start tracking free

Printed In

  • DIGIMON LIBERATOR DEBUGGERS SET [PB-22] Feb 2026
  • WORLD CONVERGENCE [BT-21] Apr 2025
  • Other Promos
See the full BT21 card list

Rulings for Medusamon

Official clarifications published for this card.

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

Can I use this card's [All Turns] effect to play a [Petrification] Token during the turn I activated BT8-097 [Crimson Blaze]'s [Main] effect?Apr. 4, 2025 Updated

Yes, you can. This card's [All Turns] effect plays one of your cards. Cards can be played by your effects even after a "your opponent can't play Digimon by effects" effect has activated.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

Which player's token does this card's [All Turns] effect play as an opponent's Digimon?Feb. 6, 2026 Updated

The token of the player that activated this card's [All Turns] effect is played as an opponent's Digimon. If the token played by this effect is removed from the field or the game ends, the token is returned to that player.

25 December 2025

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

[Security] effects take precedence for activation. Upon a security check, a [Security] effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.

25 December 2025

More from BT21

Full set list
Medusamon BT21-029