The template creates a WoW styled tooltip for abilities; you provide the required information through a series of named parameters.
Named parameters
Generic tooltip
Ability-specific
|float=
tooltip's float location; left or right (default)
|width=
tooltip width. Typically 18em.
|disambigpage=
Wowpedia page for this ability. Not required if this template is used directly on that page.
|name=
ability name, as it appears in game.
|icon=
icon to display; omit File: and file extension (.png); passed to {{icon }}.
|class=
Class this ability belongs to.
|level=
Level at which this ability is learned.
|spec=
Specialization name for specialization-granted abilities.
|talent=
"yes" if this ability is a talent, omit otherwise.
|replaces=
The ability that a talent replaces. Don't include brackets.
|cost=
Numeric cost of this ability.
|costunit=
Textual unit of the ability's cost ("Mana", "Energy", "Rage" etc)
|range=
Range of the ability, e.g. "Melee" or a number.
|cast=
Cast time (provide a number, 0 for instant; also accepts Passive, Next Melee, Channel; use -1 to force just "Instant" and not "Instant cast").
|cooldown
Cooldown time (e.g. "30 sec", "2 min")
|reagents=
Reagents required to use the ability.
|desc=
ability description (may use spelllink to link to effect if desired). Use <br /> tags to force multiple lines if required.
|req=
requirement to use the ability (Melee Weapon, Cat Form etc.)
|sub=
transcludes another ability's tooltip into the current page's tooltip; currently only used for Azerite Essences.
|subabove=
text that goes above the sub-ability.
|sub2=
a second ability to be transcluded.
|sub2above=
text that goes above the second sub-ability.
Demo Entangling Roots 36 yd range 50 Mana 1.5 sec cast Roots the target in place and causes 20 Nature damage over 12 sec. Gift of the Wild 40 yd range 900 Mana Instant Reagents: Wild Berries Gives the Gift of the Wild to the target's party, increasing armor by 324, all attributes by 13 and all resistances by 20 for 1 hour. Dodge Passive Gives a chance to dodge enemy melee attacks.
Consume Shadows 10% of base mana Channeled The Voidwalker consumes nearby shadows to bolster its form, recovering 30% health and mana over 6 sec and greatly increasing stealth detection to all nearby friendly targets within 30 yards. Cannot be used while in combat. Whiplash 30 yd range 2% of base mana 25 sec cooldown Instant Deals (475 + (0.85 * ($SP * 0.5))) shadow damage and instantly knocks back all enemies within 5 yards. Mortal Strike Melee range 20 Rage Instant Requires Melee Weapon A vicious strike that deals 150% weapon damage plus X and wounds the target, reducing the effectiveness of any healing received by 10% for 10 sec. 
