Phase 9: crafted summons for the legendaries

Adrian, 2026-11-09: legendaries, mythicals, Ultra Beasts and Paradox Pokemon
come from crafted summons. 22 Sigils (Naganadel evolves from Poipole), one
item told apart by custom data, from world/summons.json through
tools/summons.py: late-game recipes in three tiers (Lv 70, 80, 90), each used
in a fitting zone. A summoned legend fights as a boss (area attacks by level
and type, arena 32, the Guardian's Ward) but can be caught; on capture it
loses every boss mark. One at a time within 96 blocks.

Quest book: a Legends chapter, one quest per Sigil (97 quests). JEI lists each
Sigil as its own item, and Island Drops says where a legend is summoned; drops
Cobblemon names but doesn't have (Ho-Oh's Sacred Ash) get no slot.

Self-tests every_implemented_pokemon_is_obtainable (spawn, fossil or Sigil for
every implemented species) and sigil_summons_a_catchable_legend. Self-tests
and the island check pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

world/summons.json

@@ -0,0 +1,32 @@
+{
+  "_comment": "Crafted summons (Adrian, 2026-11-09): legendaries, mythicals, Ultra Beasts and Paradox Pokemon have no spawn data, so each gets a sigil, used in a fitting zone, that summons a catchable wild one for a hard fight. Levels and recipes are placeholders; see docs/balance.md. tools/summons.py writes the recipes and data; tools/zone_bosses.py their fights. Recipe: material in the corners, ring on the sides, core in the middle.",
+  "tiers": {
+    "1": {"level": 70, "core": "minecraft:netherite_ingot", "ring": "minecraft:diamond"},
+    "2": {"level": 80, "core": "minecraft:nether_star", "ring": "minecraft:diamond"},
+    "3": {"level": 90, "core": "minecraft:nether_star", "ring": "minecraft:netherite_ingot"}
+  },
+  "summons": {
+    "zapdos": {"zone": "westmarch", "tier": 1, "material": "cobblemon:thunder_stone"},
+    "regieleki": {"zone": "westmarch", "tier": 1, "material": "minecraft:redstone_block"},
+    "ironleaves": {"zone": "jungle", "tier": 1, "material": "cobblemon:leaf_stone"},
+    "regirock": {"zone": "dripstone", "tier": 1, "material": "minecraft:amethyst_shard"},
+    "latias": {"zone": "highlands", "tier": 1, "material": "cobblemon:sun_stone"},
+    "latios": {"zone": "highlands", "tier": 1, "material": "cobblemon:moon_stone"},
+    "walkingwake": {"zone": "mire", "tier": 1, "material": "cobblemon:water_stone"},
+    "regidrago": {"zone": "sunscorch", "tier": 1, "material": "minecraft:gold_block"},
+    "articuno": {"zone": "frostpeak", "tier": 1, "material": "cobblemon:ice_stone"},
+    "regice": {"zone": "frostpeak", "tier": 1, "material": "cobblemon:icy_rock"},
+    "registeel": {"zone": "deep_dark", "tier": 1, "material": "minecraft:iron_block"},
+    "moltres": {"zone": "basalt", "tier": 1, "material": "cobblemon:fire_stone"},
+    "poipole": {"zone": "the_end", "tier": 1, "material": "minecraft:ender_pearl"},
+    "xerneas": {"zone": "jungle", "tier": 2, "material": "cobblemon:leaf_stone"},
+    "zarude": {"zone": "jungle", "tier": 2, "material": "minecraft:redstone_block"},
+    "mew": {"zone": "jungle", "tier": 2, "material": "cobblemon:shiny_stone"},
+    "hooh": {"zone": "highlands", "tier": 2, "material": "cobblemon:sun_stone"},
+    "lugia": {"zone": "deep_sea", "tier": 2, "material": "cobblemon:water_stone"},
+    "regigigas": {"zone": "deep_dark", "tier": 2, "material": "minecraft:echo_shard"},
+    "rayquaza": {"zone": "frostpeak", "tier": 3, "material": "minecraft:emerald_block"},
+    "mewtwo": {"zone": "deep_dark", "tier": 3, "material": "cobblemon:dusk_stone"},
+    "eternatus": {"zone": "the_end", "tier": 3, "material": "minecraft:ender_eye"}
+  }
+}