All 34 Combos with Kairi, the Swirling Sky

Kairi, the Swirling Sky + High Tide + Turnabout + Cackling Counterpart

Infinite Mill: Return all instant and sorcery cards from your graveyard to your hand, Infinite LTB, Infinite ETB, Infinite death triggers, Infinite self-mill, Infinite storm count, Infinite magecraft triggers, Infinite mana permanents you control can produce

Cast High Tide by paying {U}. Cast Cackling Counterpart 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 Cackling Counterpart from your graveyard to your hand. Cast High Tide by paying {U}. Activate at least three Islands by tapping them, adding {U}{U}{U}. High Tide triggers twice for each Island tapped this way, adding that much {U}. Cast Turnabout by paying {2}{U}{U}, untapping all lands you control. Cast Cackling Counterpart 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 Cackling Counterpart from your graveyard to your hand. Repeat from step 6.