Myr Welder + Gilder Bairn + Biotransference + Gilded Lotus

Myr Welder

Gilder Bairn

Biotransference

Gilded Lotus

How it works

1. Activate Myr Welder using Gilded Lotus's ability by tapping it, adding at least 2G/U.
2. Activate Myr Welder using Gilder Bairn's ability by paying 2G/U and untapping it, targeting any permanent.
3. Repeat.