Felidar Guardian + Liliana, Death's Majesty + Viscera Seer

Felidar Guardian

Liliana, Death's Majesty

Viscera Seer

How it works

1. Sacrifice Felidar Guardian to Viscera Seer to scry 1.
2. Activate Liliana's -3 ability to return Felidar Guardian to the battlefield from your graveyard.
3. When Felidar Guardian enters the battlefield, exile Liliana and return it to the battlefield with 5 loyalty.
4. Repeat.

This clever loop relies on Liliana, Death's Majesty to continuously revive Felidar Guardian from your graveyard using her minus ability, while Viscera Seer acts as the necessary sacrifice outlet to bin the cat and set up future recursion. Every time Felidar Guardian enters the battlefield, its triggered ability blinks Liliana, Death's Majesty, resetting her loyalty counters so you can keep paying the cost to bring the Guardian back. Because the planeswalker re-enters as a fresh object, you can repeat this cycle indefinitely, fueling your Viscera Seer with infinite sacrifice triggers, creature leaves-the-battlefield triggers, enters-the-battlefield triggers, and endless scrys to sculpt your library.