Sliver Queen + Ashaya, Soul of the Wild + Blossoming Tortoise + Spark Double

Sliver Queen

Ashaya, Soul of the Wild

Blossoming Tortoise

Spark Double

How it works

1. Activate Sliver Queen by paying 0, creating a 1/1 Sliver creature token.
2. Repeat.

With Ashaya, Soul of the Wild on the battlefield, all your nontoken creatures are also Forest lands in addition to their other types, transforming Sliver Queen and any copies into mana-producing lands. Blossoming Tortoise steps in to reduce the activation costs of all those land abilities by {1}, making Sliver Queen's token generation completely free. By using Spark Double to copy Sliver Queen without the legendary restriction, you can build a resilient army of queens that feed into this self-sustaining loop. Together, this mystical setup bypasses normal mana constraints entirely, yielding an infinite supply of creatures and endless entry triggers.