Guide:Ocram strategies

Threat Identification

 * Ocram spawns Servants of Ocram throughout the whole battle. They can be deadly if not killed right away.
 * Ocram has two stages like Eye of Cthulhu, but shoots lasers in one or the other.
 * Ocram's hit box is very weird; Some attacks will fail to hit him. To avoid this aim for his eyes or "Sweet Spot", He will then always take damage.
 * Ocram second form is extremely deadly also. Ocram will fire waves of the demon scythe spell in second form so make sure to avoid those, they can be deadly if you are hit with too many.

Strategies
Fly above him with chlorophyte bullets if you are ranged. Melee is preferred with any sword that fires projectiles so that the Servants of Ocram get hit at the same time from the beam. Possibly use frost armor with this so it inflicts frostburn. Mages do the same with ranged, except use a magic weapon.

Ranged Weapons
An Unreal Megashark with Crystal Bullets can work well, just make sure to aim for his eyes.

A Flamethrower could be an alternative if you've beaten Skeletron Prime, just watch your ammo and aim for his eyes.

Use Chlorophyte Armor (the ranged set) if you want to defeat him. Otherwise, use Hallowed Armor (ranged set).

Also use a Shadowbeam Staff in an enclosed area can deal massive amounts of damage.

Melee Weapons
Shoot him with a sword with ranged capabilities (Terra Blade, True Night's Edge, True Excalibur, Beam Sword). Boomerangs such as Light Discs or Bananarangs work well. If you have managed to get The Horseman's Blade, you can hit and kill the servants and then all of the Pumpkins summoned from hitting the servants can hit Ocram's "Sweet Spot".

Use Turtle Armor (if you can get it) if you want to defeat him. Otherwise, use Chlorophyte Armor (melee set) or Hallowed Armor (melee set).

Magic Weapons
A Mythical Rainbow Rod can work well, Demonic Magical Harp, or a Mythical Heat Ray if possible if you want to kill the servants and hit him. Use Spectre Armor, Spectral Armor, Hallowed Armor, (Mage Set) Chlorophyte Armor (Mage Set).

Use Chlorophyte Armor (the mage set) if you want to defeat him. Otherwise, use Hallowed Armor (mage set).

Or use the full set of spectre armor or spectral armor with a strong mana weapon or Magic Dagger

Accessories

 * Star Veil or Cross Necklace will help with the minions and lazers.Obsidian Shield or Ankh Shield to prevent knockback.Wings and lightning Boots or Spectre Boots for increased speed and mobility. A Mana Flower is helpful during the battle but the minions can supply you with enough Mana. Additionally Magic Cuffs can be used instead. if you are not using magic weapons an emblem or Charm of Myths is good.

The Fight

 * It is advised to have a long, straight platform, With Small Wall To Go Behind For His Second Stage similar to a platform used to fight the Wall of Flesh.

Another good strategy, since Ocram is Console-Only and you can respawn as soon as you press A(Or on PS3, press X), you set up a bed near the arena with a cannon on your roof(Make sure you can reach the cannon from your respawn point)and plenty of cannonballs, with the highest defense you can afford, and spam cannonballs in Ocram's face, respawning when needed. This will also protect from projectiles in form 2, which when combined with the time it takes him to transform, gets you a free 50+ hits for 200~ damage each. He's at 17500 Hp, 50 x 200 = 10000. Yeah... 2 rounds of form 2 projectiles and he's dead.