Your construction score increases by 2, and your wisdom score increases by 1

Dark omen summon has innate attacks 

 A dark omen summons has natural armor granting them a bonus to AC equal to Cha, but they cannot wear armor

Undead (necrotic resistance, poison immunity, exhaustion immunity, poisoned immunity

Has the ability to see when it's dark

The summon magically conjures a spectral shield , granting itself+ 2 bonus to AC. The summon can dismiss the sheld as a bonus action.

measures a character's awareness of the world and determines whether they can detect hidden objects and traps.