Requires

Extus, Oriq Overlord // Awaken the Blood Avatar must be on the battlefield. Mana Geyser must be in hand. Yahenni, Undying Partisan must be on the battlefield. Ardent Elementalist must be on the battlefield. Your opponents control at least nine tapped lands. Mana needed:

Steps

1. Cast Mana Geyser by paying .
2. Extus triggers, returning Ardent Elementalist from your graveyard to your hand.
3. Resolve Mana Geyser, adding for each tapped land your opponents control.
4. Cast Ardent Elementalist by paying its mana cost.
5. When Ardent Elementalist enters the battlefield, it triggers, returning Mana Geyser from your graveyard to your hand.
6. Activate Yahenni by sacrificing Ardent Elementalist.
7. Repeat.

Results