Toph, the First Metalbender + Ley Weaver + Thran Forge

Toph, the First Metalbender

Ley Weaver

Thran Forge

How it works

1. Give the artifact type to Ley Weaver using Thran Forge.
2. Activate Ley Weaver by tapping it, untapping it as it's a land due to Toph and another land you control.
3. Repeat step 2.

This clever engine transforms Ley Weaver into a mana-generating powerhouse by weaponizing Toph, the First Metalbender's passive ability, which turns all your nontoken artifacts into lands. Once Toph has naturally integrated Ley Weaver into the land category by making it an artifact with Thran Forge, Ley Weaver's active ability can target itself and another land for an untap. Because Ley Weaver now counts as a land, tapping it for mana and then using its own {T} ability to untap itself creates a self-sustaining loop that generates infinite mana and untaps for all your lands and artifact-lands alike.