As an action, you gain the ability to see through solid objects to a range of 30 feet. Within that range, you have darkvision if you don't already have it. This special sight lasts for 1 minute or until your concentrations ends (as if you were concentrating on a spell). During that time, you perceive objects as ghostly, transparent images.
Once you use this invocation,you can't use it again until you finish a short or long rest.
When you hit a creature with your eldritch blast, you can cast fireball as a bonus action centred on the creature you hit by expending a warlock spell slot.
Each creature in a 20-foot readius must make a Dexterity saving throw. A target takes 8d6 fire damage, or half as much damage on a successful one. The fire spreads around corners. It ignites flammable ojects in the area that aren't being worn or carried.
At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.
A Large spectral guardian appears and hovers for the duration in an unoccupied space of your choice that you can see within range. The guardian occupies that space and is indistinct except for a gleaming sword and shield emblazoned with the symbol of your deity.
Any creature hostile to you that moves to a space within 10 feet of the guardian for the first time on a turn must succeed on a Dexterity saving throw. The creature takes 20 radiant damage on a failed save, or half as much damage on a successful one. The guardian vanishes when it has dealt a total of 60 damage.
You touch a willing creature who isn't wearing armor and a protective magical force surrounds it until the spell ends. The target's base AC becomes 13 + its Dexterity modifier. The spell ends if the target dons armor or if you dismiss the spell as an action.
You teleport yourself from your current location to any other spot within range. You arrive at exactly the spot desired. It can be a place you can see, one you can visualize, or one you can describe by stating distance and direction, such as '200 feet straight downward' or '300 ft. upward to the northwest at a 45 degree angle.'
You can bring along objects as long as their weight doesn't exceed what you can carry. You can also bring one willing creature of your size or smaller who is carrying gear up to its carrying capacity and is within 5 ft. of you.
If you would arrive in a place occupied by an object or a creature, you and any creature travelling with you each take 4d6 force damage, and the spell fails to teleport you.
For the duration, you understand the literal meaning of any spoken langrage that you hear. You also understand any written language that you see, but you must be touching the surface on which the words are written. Reading one page of text takes about 1 minute.
This spell doesn't decode secret messages in a text or a glyph such as an arcane sigil that isn't part of a written language.