
Diablo casting his Fire Nova.
Flame Circle, also called Fire Nova, is a powerful move used by Diablo. Although it's slightly weaker than Baal's Incineration Nova, the spell deals a lot of damage if it touches the player, so high Fire Resistance is recommended when fighting the Lord of Terror. Unlike Baal's Incineration Nova, the flames Diablo shoots from his body are not semi-transparent.
This ability returns in Diablo III, but with a different animation: Diablo will lift his left leg and smash the floor, creating a nova of large fireballs all over the arena.
Damaging Skills
Fire — Embers • 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 • Glacial Spike • Hoarfrost
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
Magic — Beam • Blade Beam • Blast • Bomb • Bone Spirit • Hellish Projectile • Nova • Tide • Tornado • Torrent • Unholy Bolt
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