Lazav, the Multifarious + Putrid Goblin + Ashnod's Altar + Nardole, Resourceful Cyborg

Prerequisites

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Steps

1. 1Activate Lazav by paying , choosing to have it become a copy of Putrid Goblin if it doesn't have a -1/-1 counter on it, or Nardole otherwise.
2. 2Activate Ashnod's Altar by sacrificing Lazav, adding .
3. 3When Lazav dies, if it was a copy of Putrid Goblin, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
4. 4Otherwise, Lazav's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. 5When Lazav enters the battlefield, it triggers, causing you to surveil 1.
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite surveil