Lathliss, Dragon Queen + Bladewing's Thrall + Altar of Dementia + Maskwood Nexus

Prerequisites

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Steps

1. 1Cast Bladewing's Thrall by paying .
2. 2When Bladewing's Thrall enters the battlefield, Lathliss triggers.
3. 3Holding priority, activate Altar of Dementia by sacrificing Bladewing's Thrall.
4. 4Resolve the Lathliss trigger, creating a 5/5 Dragon creature token.
5. 5When the Dragon enters the battlefield, Bladewing's Thrall triggers, returning itself from your graveyard to the battlefield.
6. 6Repeat from step 2.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite mill
• Infinite self-mill