Unsealed Spellbook is a powerful Inspiration keystone rune that allows players to dynamically swap summoner spells during gameplay. Here's how it works:

Core Mechanics:

• First swap becomes available at 6 minutes
• Initial cooldown: 4 minutes (240 seconds)
• Minimum cooldown: 90 seconds
• Can swap spells while out of combat anywhere on map
• Original summoner spells continue cooling down while swapped

Key Features:

• Each unique spell swap reduces cooldown by 20 seconds
• Must use 3 different spells before reusing previous ones
• Selected spells have 5-second cooldown when swapped
• Used spells put that slot on 10-second cooldown

Special Interactions:

• Smite damage scaling:

  • First swap: 600 base damage
  • Second swap: 900 damage
  • Third+ swaps: 1200 damage maximum

• Teleport:

  • Transforms into Unleashed Teleport after 14:00
  • Transformation occurs after returning to spell slot

Limitations:

• Selecting Smite won't grant jungle item access
• Can't have duplicate summoner spells
• Swap cooldown unaffected by summoner spell haste
• No time limit on swapped spells until used

Game Mode Specifics:

• Disabled in Ultimate Spellbook, URF, and Hunt of the Blood Moon
• Replaced by First Strike in these modes

This rune excels at providing strategic flexibility through situational summoner spell access, making it particularly valuable for adaptable playstyles and coordinated team play.

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