Mat’Selesnya is the dryad parun of the Selesnya Conclave. Legend states that she was formed in a time before recorded history, when several primordial spirits of nature banded together and convalesced into one being, marking her the highest embodiment of Conclave philosophy – many united as one. Mat’Selesnya signed the Guildpact to give her followers a place in the order of things, and to preserve natural spaces and harmony of Ravnica; she would spend the next ten-thousand years within her soulbound tree, Vitu-Ghazi, quietly nurturing the Conclave.
During the Decamillennial, Mat’Selesnya was drawn out of her shelter by the chaos interrupting the Convocation ritual, only to be attacked by Szadek. The vampire drained Mat’Selesnya of much of her life force, and would have killed the ancient dryad if not for the swift action of Agrus Kos and his allies. Alive but severely weakened, Mat’Selesnya retreated to an unknown space within the metaphysical Worldsoul, where she remained dormant and unreachable.
Supposedly, the dryad trio known as Trostani were able to make contact with Mat’Selesnya in the Conclave’s darkest hour, and speak for the will of the ancient parun.