The Guide

The Guide is an NPC that appears in the begging of Terraria, He gives you useful tips in the mobile version of Terraria, but in the PC version of the game He can do that and tell you what you can craft with a certain item. The Guide can be used to summon the Wall of Flesh by using a guide voodoo doll, but the Guide will die, but luckily he will respawn.

Max Life: 250

Defense: 15