Infernal Phantom
Creature — Spirit
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, this creature gets +2/+0 until end of turn.
When this creature dies, it deals damage equal to its power to any target.
Mike Sass
Rulings
If a permanent with an eerie ability enters at the same time as one or more enchantments, its ability will trigger for each of those enchantments.
(wotc • 2024-09-20)
An ability that triggers "whenever you fully unlock a Room" triggers when a door becomes unlocked and the other door of that Room is already unlocked, or when both doors of that Room become unlocked simultaneously.
(wotc • 2024-09-20)
Use Infernal Phantom's power as it last existed on the battlefield to determine how much damage it deals due to its last ability.
(wotc • 2024-09-20)
Rulings
If a permanent with an eerie ability enters at the same time as one or more enchantments, its ability will trigger for each of those enchantments.
(wotc • 2024-09-20)
An ability that triggers "whenever you fully unlock a Room" triggers when a door becomes unlocked and the other door of that Room is already unlocked, or when both doors of that Room become unlocked simultaneously.
(wotc • 2024-09-20)
Use Infernal Phantom's power as it last existed on the battlefield to determine how much damage it deals due to its last ability.
(wotc • 2024-09-20)