A Shield Projector can form a shield from nearby template blocks, or from a Shape Card inserted in the GUI. Shaped shields ignore template blocks.
Visibility modes are Invisible, Shield, Transparent, Solid, and Mimic. Mimic uses the block inserted in the mimic slot as the shield texture.
Filters decide what happens to entities: pass, block, damage, or block and damage. Filter types include All, Passive, Hostile, Item, and Player.
Filter order matters. Move specific rules above broad rules so named players or item rules are handled before a general All rule.