Terra Stone (Foltchaín)

The Terra Stone of Foltchaín holds the essence and soul of an ancient archomental known as Foltchaín. It was acquired from the body of Terraczar following the battle for Elderfall.
==Description==
A bright emerald gemstone that illuminates the chamber or area in which it resides, vines enwrap the stone as a fine residue of sap covers the entirety of the stone. All the lands within 100ft grows with wild flora.
==Research==
Completed by Arania
As hands are placed upon the stone, focusing on the energy within, a voice calls back. One serene of a benevolent maiden, though whispers awash with wisdom.
"I feel the embrace upon my essence, hands of warmth that seek the nature's reserve. I see you, for all the kindness within your soul. I pray you keep me safe, so the lingering power I wield cannot be used to aid the darkness and monsters that lurk beneath".
Words uttered back, in hope of response. But it appears that the communication is one way and the glow within the crystal stone seems to falter as though consuming great deals of energy to communicate. 
Spending time to attune, believing fervently that no danger lingers within, it fails to hold upon Arania. But a visions granted in her attempts.
Upon the plains of the meadows and forest, a shadow is cast over the land. A maiden with hair of fire red, in a gown of nature's embrace as vines and leaves decorate the robes she wears. Encircled by druids who call and cry words of archaic druid, the words uncertain to the present dialect, but a few words known. 
Guímid ort a Danú, do chumhachtaí a dheonú dúinn agus troid i gcoinne an dorchadais. I gcoinne na faoimórach go lurk faoi bhun an domhain. Éist linn Danú agus tabhair dúinn do bheannacht agus do mhallacht, chun cabhrú leis an talamh agus leis na foraoisí i gcogadh na Aes'áhn.
As the ritual holds, the maiden begins to grow with flesh of bark, flora spouting from within the grain. A green glow pulsating where her heart would be. A tree guardian form, yet still holding the beauty of nature. Fireflies attract and follow her very essence. Fungus and roots sprout from the joints of her new form, now towering near 17ft tall. Words uttered, words still serene yet echo with a radiant energy.
Chosaint Aestýris. Scrios faoimórach.
And then the vision fades, but a glimpse into the power that could be granted by the stone that once served as the heart of Foltchaín.
==Terra Stone of Foltchaín, very rare (requires attunement by a Warlock)==
A bright emerald gemstone that illuminates the chamber or area in which it resides, vines enwrap the stone as a fine residue of sap covers the entirety of the stone. All the lands within 100ft grows with wild flora.
You can harness the power of the Terra Stone and cast one of its spells. Once the stone has been used to cast a spell, it can't be used to cast a spell again until the next dawn. The spells use your spellcasting ability and spell save DC.
Nature's Stride. Wherever you walk within nature, wild flora grows randomly and sporadically within a 10ft radius.
Seed of Life. Whilst attuned, you gain improved critical on death saving throws, regaining 1hp at the start of your turn on a roll of 19-20. In addition, when rolling a 1 on a death saving throw, you fail just 1 death save.
Voice of the Earth. When attuned to the stone, you gain the ability to speak, write and read Sylvan, Druidic, Primordial and Terran.
• Increase your Wisdom by 2 or Charisma score by 1, to a maximum of 20.
Spells. Faerie Fire (1st-Level), Speak with Animals (1st-Level), Augury (2nd-Level), Barkskin (2nd-Level), Revivify (3rd-Level (no material components needed)), Find Greater Steed (4th-Level), Commune (5th-Level (no material components needed)), Commune with Nature (5th-Level).
When attuning to the Terra Stone, you are knowingly forming a pact with the Archomental known as Foltchaín. Upon doing so, you have the option of changing your patron to the Archomental OR The Ancient Warlock Patron. If choosing the Archomental patron, below is the expanded spell list.
The Beautiful Land Expanded Spells
Spell Level	Spells
1st 	Ensnaring Strike, Hunter's Mark
2nd 	Summon Beast, Wither and Bloom
3rd 	Erupting Earth, Life Transference
4th 	Blight, Metamorphic Mantle
5th 	Conjure Elemental, Insect Plague