Obeka without summoning sickness and with power 5 or greater).
Notable Prerequisites
An opponent cannot block
Obeka.
Steps
Deal combat damage using
Obeka, triggering its ability, causing you to get at least four extra upkeep steps.
At the beginning of your upkeep,
Smaug triggers, creating a Treasure token.
Repeat step 2 during each other extra upkeep step, creating at least four additional Treasures.
During your postcombat main phase, activate five Treasures by tapping and sacrificing them, adding ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Activate
Aggravated Assault by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , causing you to untap all creatures you control and get an additional combat and main phase after this one.
Repeat.
Notes
You can attack with Samug if an opponent cannot block and kill with. This'll allow you to deal damage using its first ability.
Results
Infinite Treasure tokens.
Infinite colored mana.
Infinite combat damage.
Infinite combat phases.
Infinite damage.
Infinite mana creatures you control can produce.
Infinite untap of creatures you control.
Metadata
In 1 deck according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).