Upgrade of the Spell Prism that can be adjusted to aim to a specific block. This prism also allows to equip a lens that modifies the redirected projectile, but can't be pushed by pistons. Use the dominion wand to aim the prism to a block, shift-click to remove the lens. Specific lens may require source whenever a projectile is redirected to extend the spell, their limits can be configured.

Ars Elemental – Advanced Prism

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A Prism Lens can be applied to this advanced prisms to customize how the prism redirects projectiles. Arc and Homing lenses change the projectile to be an arc or homing projectile. Acceleration and Deceleration lenses allow to adjust the speed.

Ars Elemental – Deceleration Prism Lens

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Piercing and Chaining lenses require source to work. Chaining lens can be inscribed on a table and will append its glyphs on the projectile redirected, if valid. Cost scales linearly with the new spell created. Piercing lens will allow to increase the projectile piercing for a fixed cost.