Voltaic Construct + Ashnod's Transmogrant + Rofellos, Llanowar Emissary

Voltaic Construct

Ashnod's Transmogrant

Rofellos, Llanowar Emissary

How it works

1. Cause Rofellos to become an artifact using Ashnod's Transmogrant.
2. Activate Rofellos by tapping it, adding at least .
3. Activate Voltaic Construct by paying 2, untapping Rofellos.
4. Repeat from step 2.

The brilliance of this combination lies in transforming Rofellos, Llanowar Emissary—a powerhouse capable of generating massive amounts of green mana based on your Forests—into an artifact creature using Ashnod's Transmogrant. Once Rofellos wears that artifact type, Voltaic Construct steps in to weaponize the accumulated mana reserves, using its ability to repeatedly untap the legendary elf for a modest two-mana investment. Because Rofellos produces more than enough mana to pay for the Construct's untap cost, you are left with a closed loop that pumps out infinite green mana and leaves your artifact creatures perpetually refreshed.