Body Launderer + Felidar Guardian + Mikaeus, the Unhallowed + Woe Strider

Body Launderer

Felidar Guardian

Mikaeus, the Unhallowed

Woe Strider

How it works

1. Activate Woe Strider by sacrificing Felidar Guardian.
2. When Felidar Guardian dies, its undying ability and Body Launderer's first ability trigger.
3. Resolve the Body Launderer trigger, causing it to connive.
4. Resolve the Felidar Guardian trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. When Felidar Guardian enters the battlefield, it triggers, targeting Body Launderer.
6. Holding priority, activate Woe Strider by sacrificing Felidar Guardian.
7. When Felidar Guardian dies, Body Launderer's first ability triggers, causing it to connive.
8. Resolve the Woe Strider ability from step 6, causing you to scry 1.
9. Resolve the Felidar Guardian trigger from step 5, blinking Body Launderer.
10. Resolve the Woe Strider ability from step 1, causing you to scry 1.
11. Activate Woe Strider by sacrificing Body Launderer.
12. When Body Launderer dies, its undying and second ability triggers.
13. Resolve the undying trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
14. Resolve the second Body Launderer trigger, returning Felidar Guardian from your graveyard to the battlefield.
15. When Felidar Guardian enters the battlefield, it triggers, blinking any other permanent you control.
16. Resolve the Woe Strider ability from step 11, causing you to scry 1.
17. Repeat.

This intricate loop relies on Mikaeus, the Unhallowed to grant undying to your non-Human creatures, turning each death into a gateway back to the battlefield. Woe Strider acts as your reliable sacrifice outlet, letting you feed your board to fuel infinite sacrifices, scries, and fodder generation. When Felidar Guardian enters, its blink ability refreshes your permanents, while Body Launderer constantly connives to filter your hand and uses its dying trigger to recycle your fallen combo pieces. Together, these elements create a self-sustaining engine that endlessly loops deaths, entries, and blinks to generate near-infinite value across the board.