Devoted Druid + Leyline of Abundance + Lae'zel, Vlaakith's Champion + The Earth Crystal

Devoted Druid

Leyline of Abundance

Lae'zel, Vlaakith's Champion

The Earth Crystal

How it works

1. Activate Leyline of Abundance by paying 6, putting four +1/+1 counters on each creature you control due to The Earth Crystal and Lae'zel.
2. Activate Devoted Druid's first ability by tapping it, adding .
3. Leyline of Abundance triggers, adding .
4. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping Devoted Druid.
5. Repeat from step 2 three additional times.
6. Repeat from step 1.

This ingenious loop transforms simple mana generation into an overwhelming board state by leveraging multiplicative counter replacement effects. While you tap Devoted Druid for mana and untap it using its own ability, Leyline of Abundance magnifies that mana production while also providing the crucial mana sink that starts the avalanche. The real magic happens because Lae'zel, Vlaakith's Champion and The Earth Crystal work together to dramatically scale up the +1/+1 counters placed by Leyline of Abundance's activated ability, turning a modest investment into an infinite supply of counters to completely dominate the battlefield.