Burning Snail was added in Beta 50.0. Previous Versions can be found here.
Burning Snail allows the user to re-trigger the Magic effect of any Snail on your board (aside from another Burning Snail).
While multiple Snails were added in the same update, none of them have a Magic effect, meaning Burning Snail's effect is limited to Blue Snail, Red Snail and Yellow Snail.
However, out of the new Snails, Burning Snail is also the only 1G one, making it gain Charge from Blue Snail (if Business Snail or other cost increasing effects aren't involved) and summonable by Thundersnail and Snail Bucket.