Rain of Fire does 50% damage to buildings.

Cast Rain of Fire on any enemy units that can't run away. Try to move the enemy into areas where their retreat is cut off so you can cast Rain of Fire on them. Whenever possible aim Rain of Fire on low hit point units such as ranged units and spellcasters. Be sure to prevent your units from running into the Rain of Fire after your enemy steps out of it.

Rain of Fire will hurt your own troops so don't cast it on your own units or on allied units.

This spell will damage all units including friendly units. Additionally, it costs a bit more mana than Blizzard, has a longer Cooldown, and in all circumstances will do slightly more damage. Similar to Blizzard, except it also ignites affected units, causing moderate damage over time to them.

Rain of Fire has a damage cap that is invoked when it hits more than 5 targets per wave.

Pit Lord can be healed by Death Coil and is harmed by Holy Light this makes him a natural choice for Undead and a poor choice for Human players.

Remember that the Pit Lord has a better-than-average Cooldown and benefits greatly from Claws of Attack or other attack-boosting items.

His Doom ultimate is another tool for players (especially Banshee-using Undead players) to swing a large conflict to your favor from the outset. The 'Howling Pit Lord' is the first one to enter combat and stays in the front line until he or his enemies die. The 'Rain Pit Lord' uses Rain to soften up enemy troops once or twice and then charges in with Cleaving Attack to finish them off.

Like most Neutral heroes, using the Pit Lord is a matter of choosing between his two big spells and then putting spare points in his minor skill. His ultimate Dooms an enemy to a fate of unholy servitude to your Pit Lord. His Cleaving Attack gives him an edge when wallowing in hordes of enemy troops. He has Howl of Terror to lower the effectiveness of enemy troops. The Pit Lord is a ferocious Strength hero! He can cast Rain of Fire from a distance to burn up low hit point units. These massive Demons take sadistic pleasure from instilling crazed terror, and then slaughtering their enemies. A warrior hero, exceptional at weakening enemies and melee combat.

Pitlord dota 1