Basically, the phase spider can possesses a magical ability to a phase in and also out of an Ethereal plane. It is almost seems to be appeared out of nowhere and also quickly vanishes after it is attacking. Actually, its movement on an Ethereal Plane before it coming back to The Material Plane makes it seem like it can Teleport.
Traits
Ethereal Jaunt: Like a bonus action, the spider able to magically shift from the material plane to an Ethereal plane, or else vice versa.
Spider Climb: As per this trait the spider can climb many difficult surfaces, which is including upside down on the ceilings, but without needing for make an ability check.
Web Walker: As per this web walker the spider can ignore the movement restrictions which are caused by the webbing.
Actions
Bite: By using this bite attack this monster can make a melee weapon attack: +4 to hit, reach 5ft., one creature. It also Hit: 7 (1d10 + 2) piercing damage, and even the target should capable of making a DC 11 Constitution saving throw, and taking 18 (4d8) poison damage on a failed save, or else half as much damage on a successful one.
Suppose, if the poison damage is reduced the target to almost to 0 Hit Points, and also the target is stable but it is poisoned for an hour, even though after regaining Hit Points, and is Paralyzed while Poisoned in this way.
Attributes Of Phase Spider DnD 5E Monster
| AC | 13 (Natural Armor) |
| Alignment | Unaligned |
| CHA | 6 |
| CON | 12 |
| Challenge Rating | 3 |
| DEX | 15 |
| HP | 32 (5d10+5) |
| INT | 6 |
| Passive Perception | 10 |
| Roll 0 | 1d20 + 4 1d10+2 |
| Roll 1 | Poison 1d20 + 0 4d8 |
| STR | 15 |
| Senses | Darkvision 60 Ft. |
| Size | Large |
| Skills | Stealth +6 |
| Speed | 30 ft., climb 30 ft. |
| Type | monstrosity |
| WIS | 10 |