Use a Ritual Diviner for easier construction.
Activation Cost: 2,000 EV
Crystal: Weak Activation Crystal
Upkeep: 10 EV/sec
Rune Requirements:
12x Earth Ritual Stone
4x Fire Ritual Stone
4x Air Ritual Stone
Total: 20 runes
The Silent Axe
An invisible lumberjack stalks the ritual's domain, felling every tree it finds; logs shatter, leaves scatter, and the timber is gathered into a nearby chest if one is available. Pair this with a grove ritual and saplings for an endless supply of wood.