Skithiryx, the Blight Dragon

three generic mana one black mana Legendary Creature — Phyrexian Dragon SkeletonPower and toughness4/4

Flying

Infect

one black mana : Venom gains haste until end of turn.

one black mana : Regenerate Venom.

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Foil 58.69 $

34 printings · up to 27.35 $

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Skithiryx, the Blight Dragon rulings

2025-09-19
Skithiryx can regenerate even if it isn't in combat, it's already tapped, or it's undamaged.
2025-09-19
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.
2025-09-19
A player who has ten or more poison counters loses the game. This is a state-based action.
2025-09-19
The -1/-1 counters remain on the creature indefinitely. They're not removed if the creature regenerates or the turn ends.
2025-09-19
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.
2025-09-19
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.
2025-09-19
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).

Skithiryx, the Blight Dragon keyword rules

Flying Rule 702.9

Flying is an evasion ability.

A creature with flying can’t be blocked except by creatures with flying and/or reach. A creature with flying can block a creature with or without flying. (See rule , “Declare Blockers Step,” and rule , “Reach.”)

Multiple instances of flying on the same creature are redundant.

Regenerate Rule 701.15

If the effect of a resolving spell or ability regenerates a permanent, it creates a replacement effect that protects the permanent the next time it would be destroyed this turn. In this case, “Regenerate [permanent]” means “The next time [permanent] would be destroyed this turn, instead remove all damage marked on it and its controller taps it. If it’s an attacking or blocking creature, remove it from combat.”

If the effect of a static ability regenerates a permanent, it replaces destruction with an alternate effect each time that permanent would be destroyed. In this case, “Regenerate [permanent]” means “Instead remove all damage marked on [permanent] and its controller taps it. If it’s an attacking or blocking creature, remove it from combat.”

Neither activating an ability that creates a regeneration shield nor casting a spell that creates a regeneration shield is the same as regenerating a permanent. Effects that say that a permanent can’t be regenerated don’t preclude such abilities from being activated or such spells from being cast; rather, they cause regeneration shields to not be applied.

Infect Rule 702.90

Infect is a static ability.

Damage dealt to a player by a source with infect doesn’t cause that player to lose life. Rather, it causes that source’s controller to give the player that many poison counters. See rule .

Damage dealt to a creature by a source with infect isn’t marked on that creature. Rather, it causes that source’s controller to put that many -1/-1 counters on that creature. See rule .

If an object changes zones before an effect causes it to deal damage, its last known information is used to determine whether it had infect.

The infect rules function no matter what zone an object with infect deals damage from.

Multiple instances of infect on the same object are redundant.