Kodama of the East Tree
Petrified Field
Echoing Deeps
Tireless Provisioner
Archelos, Lagoon Mystic

   Prerequisites

What do I need to start this combo?
Echoing Deeps in your graveyard.
Petrified Field in hand.
All other permanents on the battlefield.
You are able to play a land this turn.

   Steps

How does this combo work?
1
Play Petrified Field.
2
When Petrified Field enters the battlefield, Kodama of the East Tree and Tireless Provisioner trigger.
3
Resolve the Kodama of the East Tree trigger, putting nothing onto the battlefield.
4
Holding priority, activate Petrified Field's second ability by tapping and sacrificing it, returning Echoing Deeps from your graveyard to your hand.
5
Resolve the Tireless Provisioner trigger, creating a token.
6
When the token enters the battlefield, Kodama of the East Tree triggers, putting Echoing Deeps from your hand onto the battlefield untapped as a copy of Petrified Field.
7
When Echoing Deeps enters the battlefield, Tireless Provisioner triggers.
8
Holding priority, activate Echoing Deeps using Petrified Field's second ability by tapping and sacrificing it, returning Petrified Field from your graveyard to your hand.
9
Resolve the Tireless Provisioner trigger, creating a token.
10
When the token enters the battlefield, Kodama of the East Tree triggers, putting Petrified Field from your hand onto the battlefield.
11
When Petrified Field enters the battlefield, Tireless Provisioner triggers.
12
Repeat from step 4.

   Results

What do I get from this combo?
Infinite colored mana
Infinite lifegain triggers
Infinite lifegain
Infinite Treasure tokens
Infinite landfall triggers
Infinite Food tokens