3 comps
A5s Beast/Hunter Cleave (2347)
Beast/Hunter Cleave is a ranged burst comp built around the hunter's Beast Within window: a CC-immune nuke phase backed by Elemental Shaman and Destro Warlock damage, all propped up by a disc priest and holy paladin. It hits like a truck for eighteen seconds and refuses to die afterward. If the opener doesn't kill, the double-healer backbone lets you reset and go again.
A5s Melee Cleave
The default competitive 5s archetype: stacked melee burst (warrior + rogue) behind two or three healers. 5s in TBC is less rigid than 2s/3s — think in team archetypes, and melee cleave is the highest-floor one.
A5s Shadowplay Plus
Shadowplay Plus takes the shadow priest and elemental shaman core and bolts on a frost mage, destruction warlock and holy paladin for a five-caster wall of ranged burst. It kills through raw instant damage stacked into one global, backed by a silence chain no single healer survives. When the burst is peeled, it simply mana-burns the enemy healer into the floor instead.