Voltaic Construct + Silverskin Armor + Arbor Adherent

Voltaic Construct

Silverskin Armor

Arbor Adherent

How it works

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

This elegant loop turns Arbor Adherent into a self-contained mana engine by leveraging the equipment's passive typing. Because Silverskin Armor grants its equipped creature the artifact type alongside its other types, Arbor Adherent qualifies as a valid target for Voltaic Construct. Once the Druid taps for enough mana to surpass the construct's activation cost, you can funnel a portion of that energy right back into Voltaic Construct to untap Arbor Adherent, repeating the process as many times as you desire for infinite colored mana.