Bog Glider, Dryad Arbor, Intruder Alarm, Arcane Adaptation, and Mortuary

Prerequisites

• Bog Glider on the battlefield
• Dryad Arbor on the battlefield
• Intruder Alarm on the battlefield
• Arcane Adaptation on the battlefield
• Mortuary on the battlefield
• Bog Glider does not have summoning sickness
• "Mercenary" chosen with Arcane Adaptation

Steps

1. Activate Bog Glider by tapping it and sacrificing Dryad Arbor
2. When Dryad Arbor dies, Mortuary triggers, putting Dryad Arbor on top of your library from your graveyard
3. Resolve the Bog Glider ability, searching your library for Dryad Arbor and putting it onto the battlefield
4. When Dryad Arbor enters the battlefield, Intruder Alarm triggers, untapping all creatures
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures