Tanazir Quandrix + Emiel the Blessed + Cryptic Trilobite
Tanazir Quandrix
Emiel the Blessed
Cryptic Trilobite
Infinite +1/+1 counters on certain creaturesInfinite blinkingInfinite colorless mana that can only be spent to activate abilitiesInfinite creature ETBInfinite creature LTB
How it works
Activate Emiel by paying 3, blinking Tanazir.
Tanazir enters the battlefield, doubling the number of +1/+1 counters on Cryptic Trilobite.
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.