Agatha of the Vile Cauldron + Silvanus's Invoker + Virtue of Strength // Garenbrig Growth

Agatha of the Vile Cauldron

Silvanus's Invoker

Virtue of Strength // Garenbrig Growth

How it works

1. Activate a basic land by tapping it, adding 3 due to Virtue of Strength.
2. Activate Silvanus's Invoker by paying 1, untapping the land and causing it to become an 8/8 Elemental with trample and haste in addition to its other types until end of turn.
3. Repeat.

This clever loop relies on Agatha of the Vile Cauldron to slash the activation cost of Silvanus's Invoker down to just a single generic mana. To fuel this indefinitely, Virtue of Strength turns any basic land into a triple-threat power plant, producing enough mana with a single tap to pay the discounted activation and still leave profit behind. You simply tap your land for triple mana, use a fraction of it to untap that exact same land with Silvanus's Invoker, and repeat the process to generate boundless mana and an army of massive 8/8 elementals.