Torrent is a monster skill not unlike the similar skill used by the various Wizard classes. The monster sends a barrage of magic bolts at the player in an arc, or while adjusting aim to the player's position. Some versions also hone in on the player.
In Diablo Immortal, it is used by the Accursed Ancient, Baal, Blood Rose, Lethes's Simulacrum, the Guardian of the Nightmare, Othva and Grand Proxies.
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Damaging Skills
Fire — Apocalypse • Eruption • Fire Arrow • Fireball • Fire Bolt • Fire Hit • Firestorm • Fire Wall • Flame Circle • Grenade • Hydra • Incinerate • Incineration Nova • Inferno • Meteor • Minefield
Ice — Arctic Blast • Blizzard • Cold Touch • Fire Hit (Cold) • Freezing Charge • Frost Bolt • Glacial Spike • Hoarfrost • Ice Shards
Poison — Poison Bolt • Poison Breath • Poison Cloud • Poison Spit • Poison Spray • Poison Sting • Poison Strike
Lightning — Lightning • Lightning Arrow • Lightning Globe • Lightning Storm • Red Lightning Hose • Shocking Hit • Spark Defense • Thunderbolt
Physical — Bite • Blast Wave • Blow Dart • Charge (Berserk Charge) • Cleave • Corpse Cannon • Destructive Strike • Divebomb • Grab • Ground Spikes • Ground Tentacle • Leap • Javelin • Leech-life Ball • Pummel •Quake • Quill Dart • Slam • Snatch • Spine Dart • Strike • Swipe • Sweep • Whirlwind
Wind — Cyclone • Gust • Tornado
Magic — Beam • Blade Beam • Blast • Bomb • Bone Spirit • Cataclysm • Hellish Projectile • Nova • Slow Time • Tide • Torrent • Unholy Bolt • Volley • Wave
Non-damaging Skills
Indirect Attack — Blood Mana • Curses • Mana Rift • Minion Frenzy • Putrify • Spin Web • Stun • Vortex
Spawning — Bone Prison • Festering Appendages • Lay Egg • Minefield • Mystifying Growth • Revive • Summon Minion • Totem
Self-effect — Bone Armor • Burrow • Effigy • Fly • Frenzy • Heal • Shell • Teleport • Vile Effigy