Wirewood Lodge + Ley Weaver + Amoeboid Changeling + Gaea's Cradle

Wirewood Lodge

Ley Weaver

Amoeboid Changeling

Gaea's Cradle

How it works

1. Activate Amoeboid Changeling by tapping it, causing Ley Weaver to become an Elf until end of turn.
2. Activate Gaea's Cradle by tapping it, adding at least .
3. Activate Ley Weaver by tapping it, untapping Wirewood Lodge and Gaea's Cradle.
4. Activate Wirewood Lodge's second ability by paying and tapping it, untapping Ley Weaver.
5. Repeat from step 2.

This loop transforms Gaea's Cradle into a massive mana engine by turning Ley Weaver into an Elf with Amoeboid Changeling, allowing Wirewood Lodge to repeatedly untap Ley Weaver. Once Ley Weaver taps to untap both Gaea's Cradle and Wirewood Lodge, you can feed a green mana back into the Lodge to restart the cycle, generating infinite green mana and infinite untaps of the lands you control.