Rolling Boulder (3.5e Spell)

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You toss out a pebble which turns into a giant boulder that takes up a 10 foot square. You may control the boulder as a move action, moving it up to 30 feet, or up to 60 ft if moving in a straight line. Any creatures the boulder passes over can either make a Reflex save to try and jump out of the way, or a Strength check to try and stop the boulder. The effective strength of the boulder is equal to your caster level + your casting modifier, with a +8 bonus for its size and weight. If the Reflex save or the strength check are failed, the boulder runs over them dealing 4d6 damage and knocking Large and smaller creatures prone. The boulder can keep rolling, or it can stop on top of the creature and pin them as if grappling. They may make opposed strength checks to push the boulder off of them, or escape artist checks, and they are effectively grappled and pinned as they take 4d6 damage each round they remain so.

Rolling the boulder down a slope doubles its movement speed, and rolling it up a slope halves its movement speed. The boulder can be attacked (AC 5) but it has a whopping 30 hp per caster level and hardness 8.

Material Component: A perfectly polished round pebble.