Thousand-Faced Shadow | Great Whale

Cards

Moonsnare Specialist and
Great Whale do not have summoning sickness.
An opponent cannot block
Moonsnare Specialist or
Great Whale.
You control up to seven lands that can tap to produce at least ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .

Declare
Great Whale and
Moonsnare Specialist as attackers.
When they aren't blocked, activate up to seven lands you control by tapping them, adding at least ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Activate
Thousand-Faced Shadow's ninjutsu ability by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) and returning
Moonsnare Specialist from the battlefield to your hand, putting
Thousand-Faced Shadow onto the battlefield from your hand tapped and attacking.
When
Thousand-Faced Shadow enters the battlefield, it triggers, creating a token copy of
Great Whale that is tapped and attacking.
When the
Great Whale token enters the battlefield, it triggers, untapping up to seven lands.
Activate
Moonsnare Specialist's ninjutsu ability by paying ({2} magic symbol) ({U} magic symbol) and returning
Thousand-Faced Shadow from the battlefield to your hand, putting
Moonsnare Specialist onto the battlefield from your hand tapped and attacking.
When
Moonsnare Specialist enters the battlefield, it triggers, returning up to one target creature from the battlefield to its owner's hand.
Repeat from step 2.
Deal combat damage using the
Great Whale tokens, dealing infinite combat damage to the defending opponent.
If you control up to seven lands that can tap to produce at least ({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) , this combo nets infinite mana.

This combo has been estimated to be Exhibition (Bracket 1+).