Tale of Katara and Toph + Animation Module + Hammer of Purphoros + Song of Freyalise

Tale of Katara and Toph

Animation Module

Hammer of Purphoros

Song of Freyalise

How it works

1. Activate a creature by tapping it, adding 1.
2. The creature's ability granted to it by Tale of Katara and Toph triggers, putting a +1/+1 counter on the creature.
3. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
4. Repeat.

This ingenious loop transforms your creatures into mana-producing engines by leveraging Song of Freyalise's first two chapters, which grant your board the ability to tap for any color of mana. When you tap a creature for that mana, Tale of Katara and Toph immediately notices it becoming tapped for the first time that turn and rewards the action with a +1/+1 counter. That counter placement instantly wakes up Animation Module, allowing you to feed one of the mana you just generated into its trigger to create a 1/1 Servo token. Meanwhile, Hammer of Purphoros and the rest of Song of Freyalise's eventual third chapter provide haste and keywords to round out your strategy, letting you continuously loop this process to flood the board with infinite creature and artifact entering-the-battlefield triggers.