Melee basics

What your kit brings to a group, and the habits that keep melee alive in keys and raids.

Interrupt: Rebuke (15 sec). This is your most important button in Mythic+.
Stun: Hammer of Justice
AoE stop: Blinding Light (talent)
Dispel: Cleanse Toxins (poison, disease)
Utility: Blessing of Freedom, Blessing of Protection, Lay on Hands
Defensives: Shield of Vengeance, Divine Protection, Divine Shield, Word of Glory

Most of your damage is Holy, so it breaks magic-only shields (Nek'zali's Amani, for one).
Cleanse Toxins removes poison and disease. In this season that covers venom DoTs on the Coiled Altar, Altar of Fangs and Temple of Sethraliss, plus the disease on Rav'i's Regurgitate.
Blessing of Freedom answers roots and slows: Ikuzz's Bloodthorn Roots, Glacial Tomb, Paralyzing Shots, Frost Shock.
Divine Shield works as an immunity for soak mistakes. Check the boss page before using it, because some soaks need bodies.
Blessing of Protection can save a squishy ally from physical damage, but they lose threat and can't attack while it's on.

Interrupt: Mind Freeze (15 sec). This is your most important button in Mythic+.
Stun: Asphyxiate (talent)
AoE stop: Blinding Sleet (talent)
Dispel: None
Utility: Death Grip, Anti-Magic Zone, Lichborne, Wraith Walk
Defensives: Anti-Magic Shell, Icebound Fortitude, Death Strike, Lichborne

Death Grip moves adds and interrupts most casts, so it doubles as a second kick when Mind Freeze is down.
Anti-Magic Shell soaks a lot of magic damage (Shadow, Nature, Fire). Most venom and void mechanics this season are magic.
Anti-Magic Zone is a raid cooldown, and groups ask for it on heavy magic pulses.
Lichborne makes you immune to fear and charm effects, such as Mad Shriek, Pit of Despair and Wail of Terror.
Wraith Walk breaks roots and lets you get somewhere fast.
Death Strike after a big hit is your best heal. Don't pool runic power while you're low.

Agree on a kick order before the key. Call "kick on Healing Breeze" in chat and stick to it.
Missed a must-kick? Use your stun on it next. A stun stops the cast even though it isn't an interrupt.
Press a defensive on every pull that has an AoE cast you can't stop. At +10 and up (Fortified and Tyrannical together) that's most pulls.
Melee should stand behind the mob, not beside the tank, to avoid frontals.
Keep cleaving the pack, but swap to priority targets (shields, totems, casters) when the page says so.

Stand behind the boss unless the page says otherwise. Frontals aim at the tank, and the tank faces the boss away.
Melee usually soak the group soaks because they're already stacked. Expect to be in the Normal and Heroic soak group.
Hold big cooldowns for burn windows, which every page notes. Burning during an immunity phase wastes them.
On Heroic, death debuffs and stacking damage-taken debuffs punish double soaks. Read the Heroic-only rows.

kick Interrupt the cast.

stun Stun to stop the cast. Most bosses and "CC immune" mobs ignore stuns.

cc Any crowd control works: stun, disorient, knockback, grip.

dispel Someone with the right dispel removes it.

purge Offensive dispel on the enemy (Shaman, Mage, Hunter, DH, Priest, Warlock pet).

soothe Remove an enrage (Hunter, Druid, Rogue, Evoker).

freedom Remove a root or slow.

soak Stand in it on purpose. Usually splits damage among everyone inside.

dodge Get out of it.

spread Stay apart from other players.

stack Group up on purpose.

move Positioning or running mechanic.

add Extra enemy that needs killing.

priority Swap to this target now.

tank Mostly the tank’s problem.

heal Unavoidable damage the healers handle.

defensive Press a defensive for this one.

swap Tank swap.

bleed Bleed damage over time.

enrage Enrage or wipe trigger.