Activate Jyoti by paying {1}{U}, blinking it.
When Jyoti enters, it and Deadeye Navigator trigger.
Resolve the Jyoti trigger, creating a 1/1 Forest Dryad land creature token for each time you've cast your commander from the command zone this game
When the Forest Dryads enter, Tatyova triggers that many times, giving them haste until end of turn.
Resolve the Deadeye Navigator trigger, repairing it and Jyoti.
Activate two Forest Dryads by tapping them, adding {1}{U}.
Repeat.

Infinite Forest tokens

Infinite blinking

Infinite colored mana

Infinite creature ETB

Infinite creature LTB

Infinite creature tokens with haste

Infinite landfall triggers

Jyoti, Moag Ancient

Deadeye Navigator

Tatyova, Steward of Tides

Dryad of the Ilysian Grove

Activate Ashnod's Altar by sacrificing a nontoken creature, adding {C}{C}.
The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land.
The face-down Forest enters the battlefield, triggering Tatyova, causing the Forest to become a 3/3 Elemental with haste until end of turn.
Activate the Forest by tapping it, adding {G}.
Repeat.

Infinite colorless mana

Infinite death triggers

Infinite green mana

Infinite creature sacrifice triggers

Yedora, Grave Gardener

Ashnod's Altar

Activate Altar of Dementia by sacrificing a nontoken creature.
The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land.
The face-down Forest enters the battlefield, triggering Tatyova, causing the Forest to become a 3/3 Elemental with haste until end of turn.
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to the sacrificed creature's power.
Activate the Forest by tapping it, adding {G}.
Repeat.

Infinite mill

Infinite self-mill

Altar of Dementia

Activate Phyrexian Altar by sacrificing a nontoken creature, adding one mana of any color.
The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land.
The face-down Forest enters the battlefield, triggering Tatyova, causing the Forest to become a 3/3 Elemental with haste until end of turn.
Repeat.

Phyrexian Altar

Combos with "Tatyova, Steward of Tides"