The spell target binder went straight to the relation checks and tested none of `BindTarget`'s unit gates. So:
- a heal with a dead friendly player selected was sent at the corpse and refused by the server;
- Hibernate, Banish or Turn Undead at the wrong creature type was sent and refused, instead of refusing locally with "Invalid target";
- a self-excluding spell with yourself selected bound you.
`BindTarget 0x6e5b40` refuses a unit silently, before any relation arm, when any of these holds:
- the unit is the caster and the spell has `AttributesEx & 0x80000` (`6e5bd8`-`6e5bf7`);
- the unit has `UNIT_FIELD_FLAGS & 0x10000` (`6e5c1d`);
- the spell's `TargetCreatureType` mask excludes the unit's type (`6e5c26`-`6e5c53`). A zero mask admits every unit. Otherwise a unit of type 0 is refused and a typed one needs bit `type - 1`;
- the unit is dead (signed `UNIT_FIELD_HEALTH` not above 0), unless `UNIT_DYNAMIC_FLAGS & 0x20`, a word in `0x8600` or `AttributesEx2 & 1` admits it (`6e5c5f`-`6e5c8b`);
- the unit is alive and the word has `0x400` (`6e5ca2`).
A refused selection falls to the player behind `autoSelfCast`, then to the enemy-word refusal or the cursor. `SpellCanTargetUnit 0x6e6460` runs the same five gates (`6e6507`-`6e65ab`).
- `spell/bind_gates.rs` holds the five gates. `cast_target::unit_binds` is the one predicate for the selection, the `autoSelfCast` fallback, the cursor's click, `SpellTargetUnit` and the hover verdict. The cursor's separate `excludes_caster` checks fold into it.
- The dead test now matches the reference, which catches a corpse whose create block sent no health. The `0x400` bit is now cleared by a dead unit's bind (`6e5d89`, `6e5ddb`), where before any non-self candidate cleared it.
- `creature_type.rs` is the one `0x605570`, reading these in order:
- the form's `SpellShapeshiftForm` creature type;
- the creature template's type, by `OBJECT_FIELD_ENTRY`;
- `ChrRaces`'s type.
The minimap's tracking dots used their own copy, keyed by the guid's entry bits and missing the fall-through past the form. They now call the shared resolver.
- `SpellDisplay` reads `TargetCreatureType` (column 14).
Tests:
- `bind_gates.rs` has a truth table per gate. Its `ladder` module drives `resolve_cast_target` through:
- a dead heal target, with `autoSelfCast` on and off;
- Hibernate at the wrong type;
- a self-excluding spell;
- the `0x10000` flag;
- the `0x402` word.
- `the_press_the_click_and_the_hover_bind_the_same_units` runs one table through all three paths.
- `real_spell_catalog_reads_the_bind_gate_columns` pins the real rows for Hibernate, Banish, Turn Undead, Mind Control, Bloodlust and Revive.
Fixes#449🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
