Legeon's Hectoheptdecagon of the Elements (d118)

Wondrous item, artifact (requires attunement)

The Hectoheptdecagon is a satin, black, non-euclidean gem that fits in the palm of your hand.

Alter Matter Charges 3/day
As an action, you either re-orientate this gem in your grasp, or roll it like a die.
As you do so, sub-atomic particles are re-designated from surrounding materials to form another.

Turn
While you are attuned, you turn the gem in hand as an action.
You may select any element from the table as long as you have previously rolled that element at least once.
You may direct the effects of that element as per the associated spell's description.
Intelligence is your spellcasting ability for these spells.

Roll
You cast the gem unto the whim of your universe. Roll a d118 (1d100 +1d20 +1d6 +1d4 -12), and consult the table of the elements.
Make a ranged attack with the gem throwing it or hurling it with a sling. If thrown, it has a range of 60 feet, the DM determines if the gem continues to roll beyond this point based on the surface it lands.
Any resulting area effect spell is centered on the gem, Targets are effected in order of nearest to furthest from where the hectoheptdecagon lands.
Charisma is your spellcasting ability for these spells.

d118 Symbol Group Element Affect

1

H

1

Hydrogen

Burning Hands + Create or Destroy Water

2

Ne

1

Helium

Primordial Ward

3

Li

2

Lithium

Flaming Sphere

4

Be

2

Beryllium

Hellish Rebuke

5

B

2

Boron

Protection From Energy

6

C

2

Carbon

Sleep

7

N

2

Nitrogen

Freezing Sphere

8

O

2

Oxygen

Passwall

9

F

2

Fluorine

Incendiary Cloud

10

Ne

2

Neon

Counterspell

11

Na

3

Sodium

Fireball

12

Mg

3

Magnesium

Continual Flame

13

Al

3

Aluminium

Wristpocket

14

Si

3

Silicon

Protection from Energy

15

P

3

Phosphorus

Conjure Elemental

16

S

3

Sulfur

Infernal Calling

17

Cl

3

Chlorine

Cloudkill

18

Ar

3

Argon

Antimagic Field

19

K

4

Potassium

Scorching Ray

20

Ca

4

Calcium

Wall of Fire

21

Sc

4

Scandium

Heat Metal

22

Ti

4

Titanium

Magic Weapon

23

V

4

Vanadium

Flame Blade

24

Cr

4

Chromium

Chromatic Orb

25

Mn

4

Manganese

Prismatic Wall

26

Fe

4

Iron

Flame Blade

27

Co

4

Cobalt

Stoneskin

28

Ni

4

Nickel

Mending

29

Cu

4

Copper

Chain Lightning

30

Zn

4

Zinc

Erupting Earth

31

Ga

4

Gallium

Ice Storm

32

Ge

4

Germanium

Tasha's  Caustic Brew

33

As

4

Arsenic

Vitriolic Sphere

34

Se

4

Selenium

Antilife Shell

35

Br

4

Bromine

Power Word Pain

36

Kr

4

Krypton

Resilient Sphere

37

Rb

5

Rubidium

Flame Strike

38

Sr

5

Strontium

Immolation

39

Y

5

Yttrium

Abi Dalzim's Horrid Wilting

40

Zr

5

Zirconium

 Earth Tremor

41

Nb

5

Niobium

Arcane Lock

42

Mo

5

Molybdenum

Cloud of Daggers

43

Tc

5

Technetium

Holy Weapon

44

Ru

5

Ruthenium

Mighty Fortress

45

Rh

5

Rhodium

Pass Without Trace

46

Pd

5

Palladium

Banishing Smite

47

Ag

5

Silver

Jim's Glowing Coin

48

Cd

5

Cadmium

Bones of the Earth

49

In

5

Indium

Maximilian's Earthen Grasp

50

Sn

5

Tin

Armor Agathys

51

Sb

5

Antimony

Tongues

52

Te

5

Tellurium

Wall of Force

53

I

5

Iodine

Greater Restoration

54

Xe

5

Xenon

Dispel Magic

55

Cs

6

Caesium

Investiture of Flame

56

Ba

6

Barium

Aganazzar's Scorcher

57

La

6

Lanthanum

Destructive Wave

58

Ce

6

Cerium

Lightning Bolt

59

Pr

6

Praseodymium

Reverse Gravity

60

Nd

6

Neodymium

Arcane Sword

61

Pm

6

Promethium

Awaken

62

Sm

6

Samarium

Blade of Disaster

63

Eu

6

Europium

Flesh to Stone

64

Gd

6

Gadolinium

Hex

65

Tb

6

Terbium

Enlarge Reduce

66

Dy

6

Dysprosium

Telekinesis

67

Ho

6

Holmium

Globe of Invulnerability

68

Er

6

Erbium

Faerie Fire

69

Tm

6

Thulium

Temporal Shunt

70

Yb

6

Ytterbium

Gift of Alacrity

71

Lu

6

Lutetium

Branding Smite

72

Hf

6

Hafnium

Wrathful Smite

73

Ta

6

Tantalum

Blur

74

W

6

Tungsten

Invulnerability

75

Re

6

Rhenium

Dimension Door

76

Os

6

Osmium

Holy Aura

77

Ir

6

Iridium

Immovable Object

78

Pt

6

Platinum

Distort Value

79

Au

6

Gold

Incite Greed

80

Hg

6

Mercury

Haste

81

Tl

6

Thallium

Word Radiance

82

Pb

6

Lead

Intellect Fortress

83

Bi

6

Bismuth

Prismatic Spray

84

Po

6

Polonium

Guards and Wards

85

At

6

Astatine

Irresistible Dance

86

Rn

6

Radon

Absorb Elements

87

Fr

7

Francium

Delayed Blast Fireball

88

Ra

7

Radium

Incendiary Cloud

89

Ac

7

Actinium

Word of Radiance

90

Th

7

Thorium

Thunderwave

91

Pa

7

Protactinium

Sunburst

92

U

7

Uranium

Sickening Radiance

93

V

7

Neptunium

Banishment

94

Pu

7

Plutonium

Sickening Radiance

95

Am

7

Americium

Fire Storm

96

Cm

7

Curium

Sacred Flame

97

Bk

7

Berkelium

Gravity Sinkhole

98

Cf

7

Californium

Sunbeam

99

Es

7

Einsteinium

Aura of Purity

100

Fm

7

Fermium

Antilife Shell

101

Md

7

Mendelevium

Fabricate

102

No

7

Nobelium

Disintegrate

103

Lr

7

Lawrencium

Glyph of Warding

104

Rf

7

Rutherfordium

Melf's Minute Meteors

105

Db

7

Dubnium

Weird

106

Sg

7

Seaborgium

Circle of Power

107

Bh

7

Bohrium

Wall of Light

108

Hs

7

Hassium

Earthquake

109

Mt

7

Meitnerium

Forbiddance

110

Ds

7

Darmstadtium

Reality Break

111

Rg

7

Roentgenium

Magnify Gravity

112

Cn

7

Copernicium

Dark Star

113

Nh

7

Nihonium

Power Word Kill

114

Fl

7

Flerovium

Forbiddance

115

Mc

7

Moscovium

Polymorph

116

Lv

7

Livermorium

Stinking Cloud

117

Ts

7

Tennessine

Feeblemind

118

Og

7

Oganesson

Gaseous Form