How long does Banutu's dragonstone last?
Solution 1:
According to https://fireemblemwiki.org, Dragonstones last for 5 turns, with the exception of the Earthstone, which will turn Medeus for the remainder of the chapter.
The different Dragonstones available in Mystery of the Emblem:
- Firestone
- Magestone
- Wyvernstone (Tiki only)
- Divinestone (Tiki only)
- Earthstone (Medeus only)
All of them have 18 uses, adding up to 80 turns of transformation per stone.