Effects

The "Effects" category includes a handful of symbols that don't fit in elsewhere. Some of them duplicate instability effects, but using them also makes the world more stable. Thus they can be used for a "devil you know" tradeoff, accepting a known effect to reduce or eliminate other instability effects. Unlike the other categories, none of these are required, and none will be randomly inserted by the grammar.

Stabilizing handicaps:
 * Lightning: The color can be specified by a Gradient.
 * Scorched Surface: All entities exposed to the sky will be regularly set on fire.
 * Meteors: Note that this will eventually destroy the world.
 * Spontaneous Explosions: This will eventually destroy anything not made of obsidian or similar, and they can occur inside blastproof structures.

Others:
 * Accelerated: This gives the world extra block ticks, speeding plant growth and other processes.  It also counts as "greedy", and causes a fair bit of instability.
 * Anti-PvP: Sets the world as a no-PvP zone.  May not be available in single-player.
 * Clear Modifiers: Formerly, this would completely remove any dangling modifiers.  Now it merely minimizes the instability they can cause.