Infinite +1/+1 counters on most creatures you controlInfinite colorless mana that can only be spent to activate abilities
How it works
Activate Genku by paying 3, putting two +1/+1 counters on each creature you control due to Ozolith, the Shattered Spire.
Activate Cryptic Trilobite's first ability twice by removing two +1/+1 counters from it, adding CCCC that can only be spent to activate abilities.
Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding .
Repeat.
Once you have infinite C, you may forego removing counters from Cryptic Trilobite.
This clever setup transforms a simple activation into a self-sustaining engine by letting our mana-producers fuel each other while generating massive growth. Crystalline Crawler and Cryptic Trilobite act as our batteries, removing their own +1/+1 counters to generate the exact colors and restriction-free mana needed to keep the cycle going. Meanwhile, Ozolith, the Shattered Spire is the secret amplifier that turns Genku, Future Shaper's targeted counter-granting ability into a surplus, ensuring we always gain more counters than we spend.