Voltaic Construct + Silverskin Armor + Bloom Tender

Voltaic Construct

Silverskin Armor

Bloom Tender

How it works

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

This elegant loop turns a simple druid into an infinite mana engine by exploiting a clever classification trick. By outfitting Bloom Tender with Silverskin Armor, the creature is transformed into an artifact in addition to its other types, making it a valid target for Voltaic Construct. Once the equipped Bloom Tender taps to produce at least three mana of various colors, you can use a portion of that bounty to pay the Construct's untap ability, leaving you with a net gain of mana and an endlessly ready druid.