+1 counters for black white green combo
Fleshtaker, Green/Black Pest, Marauding Blight Priest, Panicked Bystander, Cleric Class
Fleshtaker attacks at 2/2, unblocked. Sacrifice 1 Pest, gain life from pest feature, gain life from fleshtaker sacrifice ability (scry works), gain life from panicked Bystander ability, opponent loses life each time from blight priest, +1 counter from cleric class each time doesn't register.
I activated this combo twice, and according to my math fleshtaker starts at 2/2, receives +2/2 for each sacrificed creature and +1 counter for each time life is gained. Fleshtaker ended at 6/6 from the bonus from it's ability and died when it should have been 12/12 with the counters from cleric class.
This was all on an Android, Google pixel 4a