Do u advise me to buy him or not?

1) It's Asarnil the dragonlord

2) It's a cool dragon (fully plastic too if you want to convert),a nd Asarnil looks cool too.

3) For his points he isn't bad, but I just use him as a normal prince in my armies.

cool for those who wants an elf leading their armies, for elf armies you can just pick a prince with a dragon as a mount so :rolleyes:

The second best elf dragon Rider Imrik being the first

Asarnil's magic item is a bit pants.

The main advantage in taking him is that he (only!) takes up hero and rare slots, so in theory it allows you to field a dragon in a game under 2000 points. In 2000+ games, I would go with a Prince equipped with better magic items, but still use the Asarnil model.