Cooldown Rack

The Cooldown Rack is a mechanic added by the Calamity Mod which mirrors 'cooldown' type debuffs such as Potion Sickness and Chaos State, or flat out replaces them with versions that no longer take up space in the player's buff/debuff rack, such as the Dodge Cooldown. This is most commonly used for the abundance of custom cooldowns that some of Calamity's most powerful items have, such as Auric Tesla armor.

The Cooldown Rack is positioned directly underneath the player's buff/debuff rack, which is located in the upper left-hand corner of the screen below the player's hotbar.

An example of the Cooldown Rack dynamically adjusting its position below the player's buffs, as well as examples of different types of cooldowns.

Universal Cooldowns

Universal Cooldowns have a variety of sources, typically vanilla items or mechanics. They are commonly tied to a vanilla debuff, such as Potion Sickness or Chaos State, though Life Steal Cooldown is not.

Dodge Cooldown is unique in that it is used to prevent the activation of any other dodges, despite vanilla typically separating these chances between items. For example, the Cerebral Mindtrick debuff works as a cooldown for Brain of Confusion while the Black Belt and its upgrades have no buff attribute whatsoever. Dodge Cooldown being universal helps get around this in order to prevent dodge stacking, due to the number of additional dodges that are obtainable.

Icon	Name	From
	Dodge Cooldown	Black Belt and its upgrades Brain of Confusion and its upgrades The Evolution
	Healing Cooldown	Potion Sickness
	Life Steal Cooldown	Lifesteal
	Teleportation Cooldown	Chaos State

Unique Cooldowns

Unique Cooldowns are those typically only shared between two items, or not at all, often a single line of items that upgrade into each other. These shared cooldowns prevent the stacking of these powerful effects.

Icon	Name	From	Source	Duration
	Abyssal Diving Suit Broken Plates	Abyssal Diving Suit	After the plates break	3 minutes
	Abyssal Diving Suit Plates Durability	Abyssal Diving Suit	Depletes on hit	3 hits
	Abyssal Madness	Omega Blue armor	When activated	5 seconds
	Abyssal Madness Cooldown	Omega Blue armor	After usage	30 seconds
	Ascension Cooldown	Ascendant Insignia	After usage	40 seconds
	Blood Frenzy Cooldown	Bloodflare Ram Mask Auric Tesla armor	After Blood Frenzy's usage	30 seconds
	Bloodflare Soul Cooldown	Bloodflare Horned Helm Auric Tesla armor	After Bloodflare Soul's usage	30 seconds
	Brimflame Frenzy Cooldown	Brimflame armor	After usage	30 seconds
	Contact Damage Halving Cooldown	Flesh Totem	After halving contact damage	20 seconds
	Divine Bless Cooldown	Angelic Alliance	After Divine Bless ends	1 minute
	Dodge Cooldown	Abyssal Mirror Eclipse Mirror	When hit	90 seconds (50% health) 15 seconds (5% health)
	Energy Shell Cooldown	Lion Heart	After usage	45 seconds
	Gael's Greatsword Rage Cooldown	Gael's Greatsword	After using Rage attack	30 seconds
	God Slayer Dash Cooldown	God Slayer armor Auric Tesla armor	After usage	45 seconds
	Ice Shield Cooldown	Aquatic Heart	On hit	30 seconds
	Ink Bomb Cooldown	Ink Bomb	When hit	20 seconds
	MJOLNIR Shield Level	Lunic Corps armor	Absorbs 50 damage, depletes when hit	n/a
	MJOLNIR Shield Recharge	Lunic Corps armor	Taking damage	5 seconds
	Nebulous Core Cooldown	Nebulous Core	After reviving	90 seconds
	Parry Ability Cooldown	Flame-Licked Shell	After parrying	20 seconds
		Blazing Core		30 seconds
	Permafrost's Concoction Cooldown	Permafrost's Concoction	After reviving	3 minutes
	Plague Blackout Cooldown	Plague Reaper armor	After usage	25 seconds
	Power Armor Durability	Wulfrum armor	Ability usage	30 seconds
	Prismatic Laser Barrage Cooldown	Prismatic armor	After usage	30 seconds
	Profaned Soul Shield Durability	Profaned Soul Artifact Profaned Soul Crystal	Absorbs 25 damage, depletes when hit Absorbs 125 damage, depletes when hit	n/a
	Profaned Soul Shield Recharge	Profaned Soul Artifact Profaned Soul Crystal	Taking damage	5 seconds
	Protective Matrix Durability	Rover Drive	Absorbs 20 damage, depletes when hit	n/a
	Protective Matrix Recharge	Rover Drive	Shield broken	10 seconds
	Relic of Resilience Cooldown	Relic of Resilience	After placing the bulwark	5 seconds
	Rogue Booster Cooldown	Plagued Fuel Pack Blunder Booster	After usage	1 second
	Sand Cloak Cooldown	Sand Cloak	After usage	30 seconds
	Sandsmoke Bomb Cooldown	Desert Prowler armor	After ability usage	25 seconds
	Sandsmoke Bomb Duration	Desert Prowler armor	Ability usage	5 seconds
	Scarf Cooldown	Counter Scarf Evasion Scarf	After successful dodge	30 seconds
	Silva Revive Cooldown	Silva armor Auric Tesla armor	After the immunity runs out	5 minutes
	Speed Blaster Boost	Speed Blaster	After usage	5 seconds
	Sponge Barrier Durability	The Sponge	Absorbs 180 damage, depletes when hit	n/a
	Sponge Barrier Recharge	The Sponge	Taking damage	9 seconds
	Stamina	Old Duke's Scales	Starts at 100%, consumes 20% for each dash used	n/a
	Tarragon Cloak Cooldown	Tarragon Helm Auric Tesla armor	After cloak's usage	30 seconds
	Tarragon Immunity Cooldown	Tarragon Helmet Auric Tesla armor	After immunity's usage	25 seconds
	Teleportation Cooldown	Normality Relocator	After usage	20 seconds 6 seconds (If no boss is alive)
		Rod of Discord Spectral Veil		15 seconds
	Universe Splitter Cooldown	Universe Splitter	After usage	45 seconds
	Wulfrum Bastion Cooldown	Wulfrum armor	After ability usage	20 seconds

Notes

• The Cooldown Rack's display can be made compact or disabled in the configuration options, however this does not change its effect on gameplay.
• Although Chaos State and Potion Sickness have cooldown icons on the Cooldown Rack, they remain as debuffs which take up buff slots. Their appearing on the Cooldown Rack can be toggled in the configuration options.
• Several of the effects on the Cooldown Rack also have sound effects paired with them.