Firebending Student + Aggravated Assault + Leyline Tyrant

Firebending Student

Aggravated Assault

Leyline Tyrant

How it works

1. Declare Firebending Student as an attacker, triggering its ability, adding an amount of equal to its power.
2. Move to your postcombat main phase. You will not lose the mana due to Leyline Tyrant.
3. Activate Aggravated Assault by paying 3, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
4. Repeat.

This fiery loop centers around Firebending Student, whose attack trigger generates red mana scaling directly with its power. To prevent this explosive mana from evaporating, Leyline Tyrant steps in with its passive ability, letting you safely stockpile unspent red mana across steps and phases. Once you have accumulated enough mana, you channel it into Aggravated Assault to untap your creatures and grant yourself an endless succession of additional combat and main phases, letting you march to infinite victory.