Lathliss, Dragon Queen, Bladewing's Thrall, Viscera Seer, and Maskwood Nexus

Prerequisites

• Lathliss, Dragon Queen on the battlefield
• Bladewing's Thrall in hand
• Viscera Seer on the battlefield
• Maskwood Nexus on the battlefield
• available

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite scry 1
• Infinite creature tokens