You control at least eight lands, three of which are Islands.
Mana Needed
({7} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({U} magic symbol) ({U} magic symbol) each turn plus enough mana to pay for commander tax the first turn, if applicable available.
Steps
Cast
Walk the Aeons with buyback by paying ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) and sacrificing three Islands, causing you to take an extra turn after this one and return
Walk the Aeons to your hand.
Cast
Life from the Loam by paying ({1} magic symbol) ({G} magic symbol) , returning the three Islands from your graveyard to your hand.
Cast Journey to the Oracle either from your hand or from the command zone by paying ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) and commander tax, if applicable.
Resolve Journey to the Oracle, putting the three Islands from your hand onto the battlefield and returning Journey to the Oracle to your hand.
The Islands enter the battlefield, triggering
Tatyova three times.
Resolve the first
Tatyova trigger, causing you to gain 1 life, mill three cards and return
Life from the Loam from your graveyard to your hand.
Resolve the remaining
Tatyova triggers, causing you to gain two life and draw two cards.