Boss's Chauffeur + Antler Skulkin + Phyrexian Altar

Boss's Chauffeur

Antler Skulkin

Phyrexian Altar

How it works

1. Activate Antler Skulkin by paying 2, giving Boss's Chauffeur persist until end of turn.
2. Activate Phyrexian Altar by sacrificing Boss's Chauffeur, adding 1.
3. When Boss's Chauffeur dies, its second ability and its persist ability trigger.
4. Resolve the persist trigger, returning Boss's Chauffeur to the battlefield from your graveyard with at least one +1/+1 counter due to its ability.
5. Resolve the second Boss's Chauffeur trigger, creating a number of 1/1 Citizen creature tokens equal to the number of +1/+1 counters that were on Boss's Chauffeur when it died.
6. If you created a Citizen this way, activate Phyrexian Altar by sacrificing a Citizen, adding 1.
7. Repeat.
8. If you controlled at least one additional creature to start the combo, this combo will net infinite Citizen tokens, infinite +1/+1 counters on Boss's Chauffeur and infinite colored mana.