First printed in Scars of Mirrodin (2010)
All 10 prints
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Marvel Universe (MAR) #22, 2025
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Through the Omenpaths Bonus Sheet (OMB) #22, 2025 (digital)
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Secret Lair Drop (SLD) #1562, 2025
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Multiverse Legends (MUL) #147, 2023
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Multiverse Legends (MUL) #147z, 2023
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Multiverse Legends (MUL) #17, 2023
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Multiverse Legends (MUL) #82, 2023
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The List (PLST) #SOM-79, 2020
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Double Masters (2XM) #107, 2020
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Scars of Mirrodin (SOM) #79, 2010
Legendary Creature — Phyrexian Dragon Skeleton
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
: Skithiryx gains haste until end of turn.: Regenerate Skithiryx.
4/4
Legality
- Legal in
- Modern, Legacy, Vintage, Historic, Timeless, Penny Dreadful, Gladiator, Commander, Duel Commander, PreDH, Oathbreaker, Brawl, Competitive Brawl
- Not legal in
- Standard, Pioneer, Pauper, Future Standard, Alchemy, Premodern, Old School 93/94, Pauper Commander, Tiny Leaders, Standard Brawl
Rulings (7)
- If the regeneration shield is used, Skithiryx isn't destroyed, all damage marked on Skithiryx is healed, it becomes tapped, and it's removed from combat (if applicable).
- Activating the regeneration ability creates a replacement effect that acts like a shield, replacing the next time Skithiryx would be destroyed that turn. The shield works against effects that try to destroy Skithiryx or lethal damage that would be dealt to Skithiryx.
- Skithiryx can regenerate even if it isn't in combat, it's already tapped, or it's undamaged.
- Damage that a creature with infect deals doesn't result in damage being marked on a creature or a player losing life. Instead, it results in that many -1/-1 counters being put on that creature or that many poison counters being given to that player. Damage dealt to planeswalkers still results in that planeswalker losing that many loyalty counters. Damage dealt to battles still results in that battle losing that many defense counters.
- A player who has ten or more poison counters loses the game. This is a state-based action.
- Damage from a source with infect is damage in all respects. If the source with infect also has lifelink, damage dealt by that source also causes its controller to gain that much life. Damage from a source with infect can be prevented or redirected. Abilities that trigger on damage being dealt will trigger if a source with infect deals damage, if appropriate.
- The -1/-1 counters remain on the creature indefinitely. They're not removed if the creature regenerates or the turn ends.
Prices
MTGO price: 0.006 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| March of the Machine (MOM), Premier Draft | 54.6% | -0.1 | +3.3 | 5404 |
| March of the Machine (MOM), Sealed | 59.4% | +4.0 | +7.9 | 505 |
- GIH WR
- win rate of the games in which the card was in the opening hand or drawn
- vs set
- points above or below the average win rate of all decks in the set
- IWD
- improvement when drawn: GIH WR minus the win rate when the card stayed in the library
- Games
- games in which the card was seen
Combos
3 combos, the most popular first:
- Target opponent loses the game: Moltensteel Dragon + Scion of the Ur-Dragon + Skithiryx, the Blight Dragon
- Each opponent loses the game: Crucible of Fire + Rite of Replication + Skithiryx, the Blight Dragon + Warstorm Surge
- Each opponent loses the game: Coat of Arms + Rite of Replication + Skithiryx, the Blight Dragon + Warstorm Surge
