Kairi, the Swirling Sky Combos
Kairi, the Swirling Sky + Approach of the Second Sun
Kairi, the Swirling Sky + Fake Your Own Death + Ashnod's Altar
Kairi, the Swirling Sky + Fake Your Own Death + Phyrexian Altar
Kairi, the Swirling Sky + Feign Death + Phyrexian Altar
Kairi, the Swirling Sky + Phantasmal Image + Phyrexian Altar
Kairi, the Swirling Sky + Protean Raider + Phyrexian Altar
Combo result
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count. Infinite magecraft triggers.
Prerequisites
Unearth in your graveyard. All permanents on the battlefield. Protean Raider on the battlefield as a copy of Kairi. You have attacked with a creature this turn.