This Gem May Exist, But Truly Doesn't At The Same Time. It Exists But Also Doesn't. This Gem Is The Most Confusing Thing In The World Of Dnd. This Black Gem Is Containing A Black Hole Inside Of It. Even Looking At It Can Make You Go Insane. Anything Looking At It Must Succeed On A D17 Intelligence Saving Throw Every Time They Look At It Or Be Afraid Of It For An Hour. Anything That Touche It Must Succeed On A D15 Strength Saving Throw Or Take 3d10 Force Damage And Be Knocked Prone. This Gem Can Do Many Things. They Are Listed Below...

Conjure Portal: By Holding This Gem And Hitting It With A Spell Or Weapon Once, You Can Create A Portal To The Place Your Thinking Of. When Someone Does This, They Must Succeed On A D16 Constitution Saving Throw Or Take 2d8 Psychic Damage.

Shielded Area: By Hitting This Gem Twice With A Spell Or Weapon Within 10 Seconds Of Each Hit, The Entire Area With 100ft. Of The Gem Is Magically Shielded And Cannot Be Entered By Anyone Besides The People That Were Inside When The Shield Was Created Or People That Were Let In By Someone.

The Only Way To Destroy This Gem Is By Hitting It Enough Times To Make It Lose All It's Health. It Has 50 Up, Cannot Be Critical Hit, Has A Armor Class Of 17, And Takes Half Damage To All Damage Types. If You Break It, Roll A D4. If It's A 1 Or 2, It Breaks And Is Destroyed. If It's A 3 Or 4, It Is Destroyed But Makes A Small Sphere Of Annihilation That Sucks Things In That Is Within 10ft. Of It. It Also Grows Bigger Everytime It Eats Something. When It Grows, It Also Doubles The Area Around It That It Can Suck In. (Like From 10 To 20 To 40 To 80 And So On.)

Beam Of Death: By Hitting This Gem 3 Times With A Spell Or Weapon With The Hits Within 20 Seconds Of Each Other, The Person Holding This Gem Must Succeed On A D13 Strength Saving Throw To Try And Control The Gem. If They Do This, They Can Shoot A Completely Black Beam Out From The Gem That Is 1000ft. Long. Anything That Gets In The Way Of The Beam Or In It Will Have To Succeed On A D18 Constitution Saving Throw Or Take 10d10 Necrotic Damage. If They Succeed, They Take Half Damage. The Person Controlling This Gem Will Have To Take 1d12 Necrotic Damage Every Round On Their Turn Until They Put Down The Gem.