amorphous blade Warlock invocation

at the end of any long rest you can change you pact weapons base damage type to either: Cold, fire, acid, lighting, force, necrotic, radiant or back to its original type. Each different form also has an additional effect:

• Cold: if you hit the targets speed it reduced by 10 feet until the end of your next turn.
• Fire: if you hit, you light the target on fire, while it is on fire you can use your reaction at the start of its turn to deal it 1d6 fire damage. a burning creature can use an action to put its self out.
• Acid: if the target it wearing armor, roll a d6, if the result is 5 or 6, the target gains a -1 to AC. armor is destroyed if its base AC, so 11 for leather and 18 for plate, becomes 9.
• Lightning: you have advantage on attack rolls against creatures wearing metal armor, or that are made of metal.
• Force: on a hit you deal 1d4 extra damage.
• Necrotic: on a hit you gain 2 temporary hit points.
• Thunder: Deals  an extra dice of damage to object and creatures made of stone, crystal, or glass.
• Radiant: on a hit the creature must make a DC 10 constitution saving throw, or be blinded until the end of its next turn.
• psychic: on a hit the creature must make a DC 9+ proficiency bounce, or be blinded until the start of your next turn

Check out some of my other work, i have many more Invocations and Even a New Pact Boon, with accompanying invocations.  Enter Runearver13 in the Author filter.