Eight new spells: seer's eye, cave-in, haste, stoneskin, gold rain, invisibility, plague, quake

- researched in the library (and unlocked in the campaign), in the spells menu with own icons and a radius under the pointer
- haste speeds up everything a creature does, stoneskin halves damage, invisible creatures are ignored by enemies and towers until they attack (drawn see-through), plague spreads among enemies, quake hurts and stuns enemies only, cave-in turns floor back into earth
- particles for every spell

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

lang/de.lang

@@ -797,3 +797,32 @@ research.next = danach: {0}
 research.done = Hier gibt es nichts mehr zu erforschen.
 msg.researched = Erforscht: {0}! Jetzt im Baumenü.
 msg.tool_research = Noch nicht erforscht - Kreaturen in der Bibliothek arbeiten daran.
+
+# spells
+hint.cavein_where = Ein Einsturz braucht freien Boden (keine Räume) unter dem Zeiger.
+hint.spell_own = Wirke ihn auf deine eigenen Kreaturen.
+hint.spell_foe = Wirke ihn auf Feinde.
+tool.eye.label = Auge
+tool.eye.name = Seherauge
+tool.eye.desc = Öffnet ein magisches Auge: Ein großer Bereich um die Stelle wird 20 Sekunden lang sichtbar.
+tool.cavein.label = Einsturz
+tool.cavein.name = Einsturz
+tool.cavein.desc = Die Decke stürzt ein: Freier Boden wird wieder zu Erde (3x3), wer dort steht, wird verletzt und hinausgestoßen. Versperrt Gänge.
+tool.haste.label = Eile
+tool.haste.name = Eile
+tool.haste.desc = Deine Kreaturen rund um die Stelle bewegen sich und handeln 30 Sekunden lang viel schneller.
+tool.stoneskin.label = Steinhaut
+tool.stoneskin.name = Steinhaut
+tool.stoneskin.desc = Deine Kreaturen rund um die Stelle nehmen 30 Sekunden lang nur halben Schaden.
+tool.goldrain.label = Goldregen
+tool.goldrain.name = Goldregen
+tool.goldrain.desc = Verwandelt Mana in 250 Gold für deine Schatzkammer.
+tool.invisible.label = Unsichtbar
+tool.invisible.name = Unsichtbarkeit
+tool.invisible.desc = Eine Kreatur wird 25 Sekunden lang unsichtbar: Feinde und Türme beachten sie nicht, bis sie angreift.
+tool.plague.label = Seuche
+tool.plague.name = Seuche
+tool.plague.desc = Eine Krankheit, die an den Feinden rund um die Stelle zehrt und von einem zum nächsten springt.
+tool.quake.label = Beben
+tool.quake.name = Beben
+tool.quake.desc = Der Boden bebt: Feinde rund um die Stelle werden verletzt und zwei Sekunden betäubt. Deine Kreaturen bleiben standfest.

lang/en.lang

@@ -798,3 +798,32 @@ research.next = then: {0}
 research.done = Nothing left to research here.
 msg.researched = Researched: {0}! It is in the build menu now.
 msg.tool_research = Not researched yet - creatures studying in the library work on it.
+
+# spells
+hint.cavein_where = A cave-in needs open floor (not rooms) under the pointer.
+hint.spell_own = Cast it on your own creatures.
+hint.spell_foe = Cast it on enemies.
+tool.eye.label = Eye
+tool.eye.name = Seer's Eye
+tool.eye.desc = Opens a magic eye: a wide area around the spot is revealed for 20 seconds.
+tool.cavein.label = Cave-in
+tool.cavein.name = Cave-in
+tool.cavein.desc = The ceiling comes down: open floor turns back into earth (3x3), whoever stands there is hurt and pushed out. Blocks corridors.
+tool.haste.label = Haste
+tool.haste.name = Haste
+tool.haste.desc = Your creatures around the spot move and act much faster for 30 seconds.
+tool.stoneskin.label = Stoneskin
+tool.stoneskin.name = Stoneskin
+tool.stoneskin.desc = Your creatures around the spot take only half damage for 30 seconds.
+tool.goldrain.label = Gold rain
+tool.goldrain.name = Gold Rain
+tool.goldrain.desc = Turns mana into 250 gold for your treasury.
+tool.invisible.label = Invisible
+tool.invisible.name = Invisibility
+tool.invisible.desc = One creature becomes invisible for 25 seconds: enemies and towers ignore it until it attacks.
+tool.plague.label = Plague
+tool.plague.name = Plague
+tool.plague.desc = A sickness that eats at the enemies around the spot and jumps from one to the next.
+tool.quake.label = Quake
+tool.quake.name = Quake
+tool.quake.desc = The ground shakes: enemies around the spot are hurt and stunned for two seconds. Your creatures keep their footing.