Jetfire, Ingenious Scientist // Jetfire, Air Guardian + Mycosynth Lattice + Loading Zone
Jetfire, Ingenious Scientist // Jetfire, Air Guardian
Mycosynth Lattice
Loading Zone
Infinite colorless mana that can't be spent to cast nonartifact spellsInfinite colored mana that can't be spent to cast nonartifact spells
How it works
Activate Jetfire, Air Guardian by paying 3, converting it and putting four +1/+1 counters on it.
Activate Jetfire, Ingenious Scientist by removing all +1/+1 counters from it, adding 4 and converting Jetfire.
Repeat.
This clever loop relies on the constant conversion and re-adaptation of Jetfire, Ingenious Scientist // Jetfire, Air Guardian to continuously cycle its counters into mana. With Mycosynth Lattice turning all permanents into artifacts and making all mana colorless, and Loading Zone doubling the counters placed on your permanents whenever Jetfire adapts, the math breaks wide open: adapting puts six +1/+1 counters on Jetfire instead of three, which you can then strip away for six mana to fund the next conversion cycle.