Mikaeus, the Unhallowed, Bloodthrone Vampire, and Loch Mare

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Bloodthrone Vampire on the battlefield
• Loch Mare on the battlefield

Steps

1. Activate Bloodthrone Vampire by sacrificing Loch Mare
2. When Loch Mare dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect
3. Resolve the Bloodthrone Vampire ability Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinitely large creature until end of turn