Marath by paying ({1} magic symbol) and removing a +1/+1 counter from it, giving itself two +1/+1 counters.
Activate
Marath by paying ({1} magic symbol) and removing a +1/+1 counter from it, giving
Cryptic Trilobite two +1/+1 counters.
Activate
Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol) ({C} magic symbol) that can only be spent to activate abilities.
Repeat for infinite +1/+1 counters on
Cryptic Trilobite.
Activate
Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol) ({C} magic symbol) that can only be spent to activate abilities.
Activate
Marath's ability by paying ({1} magic symbol) and removing a +1/+1 counter from it, giving itself two +1/+1 counters.
Repeat from step 5 to get infinite ({C} magic symbol) that can only be spent to activate abilities and to put infinite +1/+1 counters on
Marath, with which you can use to activate
Marath's ability infinite times.
Results
Infinite creature tokens.
Infinite damage.
Infinite death triggers.
Infinite ETB.
Infinite LTB.
Infinite colorless mana that can only be spent to activate abilities.