Old School is the bread and butter of the Earthquake League, we abide to the Eternal Central Rules.
We strongly believe that more important than having house-rules, having a consistent ruleset that can be shared with other communities around the world is critical for the format success. We also believe that allowing players to use Collector's Edition and International Edition is of great importace for the format, allowing players to have more access to the Power 9 as well as other important tools like Dual Lands and Chaos Orbs.
Most of the current Earthquake League members grew up playing magic in the "premodern" era from 1995 to 2003. As a group we decided to fully abide to the official Premodern Ruleset.