Hidetsugu and Kairi, Clone Legion, and Shipwreck Dowser

Prerequisites

• Hidetsugu and Kairi on the battlefield
• Clone Legion in hand
• Shipwreck Dowser on the battlefield
• available

Steps

1. Cast Clone Legion by paying , targeting yourself
2. Shipwreck Dowser's prowess ability triggers, giving it +1/+1 until end of turn
3. Resolve Clone Legion, causing you to create a token copy of Hidetsugu and Kairi and Shipwreck Dowser
4. Put the token Hidetsugu and Kairi into your graveyard due to the legend rule
5. The Hidetsugu and Kairi token's first and second abilities trigger, as well as Shipwreck Dowser
6. Resolve the Shipwreck Dowser trigger, returning Clone Legion from your graveyard to your hand
7. Resolve the first Hidetsugu and Kairi trigger, causing you to draw three cards and then put Clone Legion and another card on top of your library, ensuring Clone Legion is on top
8. Resolve the second Hidetsugu and Kairi trigger, exiling Clone Legion from the top of your library, then causing an opponent to lose 9 life and allowing you to cast Clone Legion from exile without paying its mana cost, targeting yourself
9. Shipwreck Dowser's prowess ability triggers, giving it +1/+1 until end of turn
10. Resolve Clone Legion, causing you to create a token copy of Hidetsugu and Kairi and Shipwreck Dowser
11. Repeat from step 4

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite copies of creatures you control
• Near-infinite creature tokens
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite lifeloss
• Near-infinite LTB
• Near-infinite magecraft triggers
• Near-infinite storm count
• Near-infinitely large Shipwreck Dowser until end of turn