Cryptic Trilobite has at least three +1/+1 counters.
Steps
Activate
Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol) ({C} magic symbol) .
Activate
Ghave's first ability by paying ({1} magic symbol) and removing a +1/+1 counter from
Cryptic Trilobite, creating a 1/1 Saproling creature token.
Activate
Ghave's second ability by paying ({1} magic symbol) and sacrificing the Saproling token.
Mazirek triggers, putting a +1/+1 counter on each creature you control.
Resolve the
Ghave ability, putting a +1/+1 counter on
Cryptic Trilobite.
Activate
Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol) ({C} magic symbol) .
Activate
Ghave's first ability by paying ({1} magic symbol) and removing a +1/+1 counter from any creature you control, creating a 1/1 Saproling creature token.
Repeat from step 3.
Once you have infinite +1/+1 counters on
Cryptic Trilobite, you may activate
Ghave's first ability an infinite number of times to get infinite Saproling tokens.
Results
Infinite colorless mana.
Infinite creature tokens.
Infinite death triggers.
Infinite ETB.
Infinite LTB.
Infinite sacrifice triggers.
Infinite +1/+1 counters on creatures you control.
Metadata
In 1512 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).