Core/Battlegrounds/IoC: fix fortress teleport pads

(and replace a hack with an other hack)

Closes #5846
Closes #7993
Ref #8984

src/server/game/Spells/SpellMgr.cpp

@@ -2975,6 +2975,7 @@ void SpellMgr::LoadSpellInfoCustomAttributes()
                 spellInfo->AttributesCu |= SPELL_ATTR0_CU_NEGATIVE_EFF0;
                 break;
             case 38729: // Rod of Purification
+            case 51858: // Siphon of Acherus
                 spellInfo->AttributesCu |= SPELL_ATTR0_CU_TRIGGERED_BY_CASTER;
                 break;
             default:
@@ -3750,6 +3751,13 @@ void SpellMgr::LoadSpellInfoCorrections()
                 // Crashes client on pressing ESC
                 spellInfo->AttributesEx4 &= ~SPELL_ATTR4_TRIGGERED;
                 break;
+            // ISLE OF CONQUEST SPELLS
+            //
+            case 66551: // Teleport
+                spellInfo->RangeEntry = sSpellRangeStore.LookupEntry(13); // 50000yd
+                break;
+            // ENDOF ISLE OF CONQUEST SPELLS
+            //
             default:
                 break;
         }