Start with the answer
Thornblade is No.034, Grass, DPS, with Sword Dance as its counter/damage trait. The official record lists Thunderstorm, Prismana and Towerwood forms and Sea of Flowers as its habitat. It is also repeatedly listed as a sturdy Grass choice in free Prismana guides, but that recommendation is medium-confidence community evidence.
Confirmed profile
The official entry identifies Thornblade as No.034, Grass and DPS. Sword Dance is the named counter/damage trait in the supplied research, which makes counter timing a useful part of the creature’s identity without requiring a claim that it is a universal tank.
Forms and habitat
The current official link records Thunderstorm, Prismana and Towerwood forms, with Sea of Flowers as the habitat. An older search result pointed to item 10002836, but that page is dead; the live index link is item 10003089 and should be used for citations.
Why it appears in Prismana choices
Launch guides repeatedly include Thornblade in free Prismana choice discussions and frame it as a durable Grass option. This can help when you need a counter-oriented damage slot, but it remains guide consensus rather than an official ranking or measured team recommendation.
Next reading
Compare Thornblade with other reported free Prismana choices on the comparison guide. Use the Prismana system page when your question is about Flow, capture or form rules rather than Thornblade itself.
Sources used on this page
Official material is prioritized. Guides and community material add context, with their evidence level kept visible in the copy.