Voltaic Construct + Biotransference + Alena, Kessig Trapper

Voltaic Construct

Biotransference

Alena, Kessig Trapper

How it works

1. Activate Alena by tapping it, adding at least .
2. Activate Voltaic Construct by paying 2, untapping Alena.
3. Repeat

This cunning loop transforms Alena, Kessig Trapper into an unstoppable mana engine by turning her into an artifact creature with the help of Biotransference. Once she is an artifact creature, Voltaic Construct can target and untap her for the low cost of two mana, completely resetting her tapping ability. Because Alena generates red mana based on the greatest power among creatures that entered the battlefield that turn, you can continuously untap her with Voltaic Construct while churning out infinite red mana.