Repeat step 1 for each remaining mana-producing land you control.
Activate Phyrexian Altar by sacrificing World Shaper, adding ({G} magic symbol) .
When World Shaper dies, its second ability triggers, causing you to return all land cards from your graveyard to the battlefield tapped.
When Golgari Rot Farm enters the battlefield, it triggers, returning Takenuma from the battlefield to your hand.
Activate Takenuma's channel ability by paying at most ({3} magic symbol) ({B} magic symbol) , causing you to mill three cards and return World Shaper from your graveyard to your hand.
Cast World Shaper by paying ({3} magic symbol) ({G} magic symbol) .
Repeat.
If you control additional mana-producing lands beyond what is required, this combo nets infinite colored mana if one of those lands produces ({B} magic symbol) or ({G} magic symbol) , or infinite mana lands you control can produce otherwise.
Results
Infinite colored mana.
Infinite death triggers.
Infinite ETB.
Infinite landfall triggers.
Infinite LTB.
Infinite sacrifice triggers.
Infinite self-mill.
Infinite storm count.
Put all land cards from your library and graveyard onto the battlefield.