World Shaper + Takenuma, Abandoned Mire + Squandered Resources + Phyrexian Altar + Rakdos Carnarium

World Shaper

Takenuma, Abandoned Mire

Squandered Resources

Phyrexian Altar

Rakdos Carnarium

How it works

1. Activate Squandered Resources by sacrificing Rakdos Carnarium, adding .
2. Repeat step 1 for each remaining mana-producing land you control.
3. Activate Phyrexian Altar by sacrificing World Shaper, adding .
4. When World Shaper dies, its second ability triggers, causing you to return all land cards from your graveyard to the battlefield tapped.
5. When Rakdos Carnarium enters the battlefield, it triggers, returning Takenuma from the battlefield to your hand.
6. Activate Takenuma's channel ability by paying at most 3, causing you to mill three cards and return World Shaper from your graveyard to your hand.
7. Cast World Shaper by paying 3.
8. Repeat.
9. If you control additional mana-producing lands beyond what is required, this combo nets infinite colored mana if one of those lands produces or , or infinite mana lands you control can produce otherwise.

By feeding your lands into Squandered Resources and sacrificing World Shaper to Phyrexian Altar, you trigger World Shaper's death ability to instantly flood the battlefield with every land card sitting in your graveyard. Among those returned lands is Rakdos Carnarium, whose entry trigger bounces Takenuma, Abandoned Mire right back to your hand so you can channel it to recur World Shaper. This tight loop is fully self-sustaining because the mana generated by sacrificing your lands and creatures easily pays for casting World Shaper again, letting you amass infinite mana, triggers, and resources.