Kelpie Guide + Freed from the Real

Kelpie Guide
Freed from the Real

Requires
All permanents on the battlefield. Freed from the Real attached to Kelpie Guide. Kelpie Guide does not have summoning sickness. You control a permanent that can tap to produce at least 1u.
Steps
  1. Activate any mana-producing permanent you control by tapping it, adding at least 1u
  2. Activate Kelpie Guide's first ability by tapping it, untapping the mana-producing permanent
  3. Activate Freed from the Real's second ability by paying u, untapping Kelpie Guide
  4. Repeat
Results
Infinite mana permanents you control can produce.