Kirri, Talented Sprout + Waves of Aggression + Klauth, Unrivaled Ancient

Prerequisites

• You have at least one land card in your graveyard.
• Klauth has power 5 or greater, or you control another creature with power 1 or greater that does not have summoning sickness.
• An opponent cannot block and kill Klauth, or any other creature you may need to attack with.

Steps

1. 1Declare Klauth and any other creature, if needed, as an attacker.
2. 2Klauth triggers, adding at least that can only be spent to cast spells.
3. 3At the beginning of your postcombat main phase, Kirri triggers, returning a land card from your graveyard to the battlefield.
4. 4Cast Waves of Aggression from your graveyard for its retrace cost by paying and discarding a land card, causing you to untap all creatures that attacked this turn, and to get an additional combat and main phase after this one.
5. 5Repeat.

Effects

• Infinite colored mana that can only be spent to cast spells
• Infinite combat phases
• Infinite magecraft triggers
• Infinite self-discard triggers
• Infinite storm count