Substantial

Is of a great amount or size.

Alter

To make different or change.

Hazard

Is something that can cause harm or injury.

Collapse

To fall down or cave in.

Severe

Is very harsh or serious.

Destruction

Is great damage or ruin.

Unpredictable

Not able to tell beforehand.

Crisis

Is a difficult or dangerous situation.

Raider

Power!!!

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