Wight of the Reliquary + Agatha's Soul Cauldron + Bloodghast + Insidious Roots + Tuktuk Rubblefort

Wight of the Reliquary

Agatha's Soul Cauldron

Bloodghast

Insidious Roots

Tuktuk Rubblefort

How it works

1. Activate a creature you control that has a +1/+1 counter on it by tapping it and sacrificing Bloodghast, searching your library for a land card and putting it onto the battlefield tapped.
2. When the land enters, Bloodghast triggers, returning itself from your graveyard to the battlefield tapped.
3. Insidious Roots triggers, creating a 0/1 Plant creature token and then putting a +1/+1 counter on each Plant you control.
4. Repeat using the Plant instead until no lands are in your library.

This elegant engine starts by feeding Bloodghast into Agatha's Soul Cauldron to exile it, which grants Wight of the Reliquary's land-fetching ability to any creature bearing a +1/+1 counter. With Tuktuk Rubblefort ensuring haste across your board, you can immediately tap your freshly grown Plant tokens—fueled by Insidious Roots to carry those crucial +1/+1 counters—to sacrifice Bloodghast over and over. Every time Bloodghast leaves your graveyard to trigger its Landfall return, Insidious Roots spawns a new Plant token and reinforces your growing army, letting you continuously strip every land straight out of your library.