Kairi, the Swirling Sky | High Tide | Turnabout (and one other card)

Cards

({3} magic symbol) ({U} magic symbol) ({U} magic symbol) ({R} magic symbol) available.

Cast
High Tide by paying ({U} magic symbol) .
Cast
Kindle the Inner Flame by paying its mana cost, creating a token copy of
Kairi.
Put the
Kairi token into your graveyard due to the legend rule.
When the
Kairi token dies, it triggers, causing you to mill six cards and return
High Tide and
Kindle the Inner Flame from your graveyard to your hand.
Cast
High Tide by paying ({U} magic symbol) .
Activate at least three Islands by tapping them, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
High Tide triggers twice for each Island tapped this way, adding that much ({U} magic symbol) .
Cast
Turnabout by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , untapping all lands you control.
Cast
Kindle the Inner Flame by paying its mana cost, creating a token copy of
Kairi.
Put the
Kairi token into your graveyard due to the legend rule.
When the
Kairi token dies, it triggers, causing you to mill six cards and return
Turnabout and
Kindle the Inner Flame from your graveyard to your hand.
Repeat from step 6.

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