Soul of Windgrace, Waves of Aggression, Grand Warlord Radha, and Orzhov Basilica

Prerequisites

• Soul of Windgrace on the battlefield
• Waves of Aggression in the graveyard
• Grand Warlord Radha on the battlefield
• Orzhov Basilica in the graveyard

Steps

1. Declare Grand Warlord Radha and Soul of Windgrace as attackers
2. When they attack, Grand Warlord Radha and Soul of Windgrace trigger
3. Resolve the Grand Warlord Radha trigger, adding at least five mana that you will not lose this turn as steps and phases end
4. Resolve the Soul of Windgrace trigger, returning Orzhov Basilica from your graveyard to the battlefield tapped
5. When Orzhov Basilica enters, it triggers, returning itself from the battlefield to your hand
6. In your next main phase, cast Waves of Aggression from your graveyard for its retrace cost by paying and discarding Orzhov Basilica, causing you to untap all creatures that attacked this turn, and to get an additional combat and main phase after this one
7. Repeat

Results

• Infinite combat phases
• Infinite landfall triggers
• Infinite magecraft triggers
• Infinite self-discard triggers
• Infinite storm count
• Infinite untap of most creatures you control
• Infinite green mana
• Infinite red mana