3 comps
AMLD (Mage / Lock / Druid)
A pure caster-control comp. Polymorph, Fear, and Cyclone layer into near-permanent lockdown while DoTs and Shatter combos kill. Dizzying to play and to play against — a control clinic when piloted well.
ARLP (Rogue / Lock / Priest)
RLP trades the mage's burst for a warlock's grinding attrition. It's a control comp that wins by never letting the pressure drop: Rogue lockdown, Warlock DoTs and fear, and a Disc Priest with double dispel keeping the train rolling until the enemy healer runs dry.
BMLP (Mage / Lock / Priest)
MLP is caster control with a disc priest instead of a druid. Polymorph, Fear, and Psychic Scream chain the enemy into permanent lockdown while the mage's Shatter combo and the priest's Mana Burn give it two independent ways to win. Trades MLD's kiting for harder healer control and a real drain game.