The "Sunavalon" monsters have appearance of a humanoid plant or a giant tree with several fruits hanging from its branches. These fruits burst forth whenever they activate their effects to summon "Sunvine" Link Monsters monsters from the Extra Deck, from which the Sunvine monster emerges. On the center of the trunk is a face which is revealed to have a Dryad-like creature inside.
"Sunavalon" is written with the Kanji for "Sacred Tree". The archetype name may be derived from a combination of the words san, Spanish for "holy; sacred", and Avalon, which literally means "the isle of fruit trees". Avalon is a legendary island featured in the Arthurian legend. The name is generally considered to be of Welsh origin, derived from Old Welsh aball or avallen, which means apple tree or fruit tree respectively. These words may be derived from the Common Celtic word abalnā, which literally means "fruit-bearing thing", similar to how the "Sunavalon" monsters "bear" the "Sunvine" monsters within its fruits. All members so far are named after mythological being associated with plants and trees.
The "Sunavalon" monsters are used in conjunction with "Sunvine" monsters to form a defensive wall and allow the user to Special Summon Link Monster from the latter series should they take damage in order to take control of the field. Due to the high swarming capabilities without requiring Link Material, the archetype allows the user to also maintains great hand advantage as well. "Sunavalon Daphne" allows the user to recycle the Link Monster in the Graveyard, thus make sure that they do not run out of Link Monsters to be Special Summoned with the Dryas-line.