rt，生存模式下除了快速而伤害巨大的攻击外，还能用什么方法可以杀死九头蛇（Hydra）.
（mcbbs内搬运贴：https://www.mcbbs.net/thread-1143037-1-1.html）
（mcbbs内搬运贴：https://www.mcbbs.net/thread-1143037-1-1.html）
根据wiki的提示，只要有一个头就会有持续的生命恢复效果，最多10个头，除非用火烧
(Miniboss) Vicious many-headed snake. The only way to keep its heads from growing back is to burn them with fire.
Each head has 22 health and 6 attack
The Hydra heals constantly as long as it has at least 1 head
If a head is killed without fire, it grows back along with a new head (maximum of 10 heads)
Spawns: in desert and savanna biomes
Drops: Poison Spear, Poison Arrows