Agatha's Soul Cauldron + Grumgully, the Generous + Krenko, Mob Boss + Temur Ascendancy

Agatha's Soul Cauldron

Grumgully, the Generous

Krenko, Mob Boss

Temur Ascendancy

How it works

1. Activate a creature with a +1/+1 counter on it, creating a 1/1 red Goblin creature token.
2. The 1/1 Goblin token enters with a +1/+1 counter on it due to Grumgully's ability.
3. Repeat.

This delightful little engine transforms a handful of synergistic permanents into a boundless horde of Goblins. While Krenko, Mob Boss provides the explosive tapping ability to flood the board, Agatha's Soul Cauldron serves as the mechanical heart of the operation by granting Krenko's tap ability to other creatures via +1/+1 counters—counters that Grumgully, the Generous ensures every new token naturally arrives with upon entering the battlefield. Finally, Temur Ascendancy rounds out the strategy by giving your entire army haste the moment they hit play, all while letting you draw a card whenever your power-four-or-greater creatures enter.