Goblin Shredder is a machine hero made for killing. His skills are good for killing, chasing and escaping so such items can aid him and advances his strategies. He can be a Carry type hero though he really needs to be playful as a requirement to his skills. Mana is a need for Rizzrak so better choose that grants him mana and is also fits and suits his skills.
The early game item build for Rizzrak can be the following:
Ironwood Branch – This item grants each attributes for Rizzrak giving him more strength and toughness to survive the early game plus the intelligence for mana support.
Ancient Tango of Essifation – This item helps Rizzrak to regenerate when in mid health condition.
Healing Salve – This item helps Rizzrak to regenerate more fast whenever he is in a low health condition.
Magic Stick – This helps you to counter spell caster enemy heroes.
Clarity Potion – This item helps Rizzrak to regenerate his mana whenever it is in low condition.
Boots of Speed – This grants Rizzrak movespeed for chasing and escaping.
Empty Bottle – This item keeps you to cast spell in constant giving you source of mana and health. Require to play with a courier.
The mid game item build for Goblin Shredder can be the following:
Headdress of Rejuvenation – This may help Goblin Shredder for better health regeneration.
Magic Wand – This helps you to regenerate your mana and health in an instant depending on its charge.
Arcane Boots – This grants Goblin Shredder and his nearby allies mana whenever its cooldown.
Power Treads – This boots gives him strength and speed.
Perseverance – This grants him both the regeneration of his health and mana.
The late game item build for Rizzrak can be the following:
Mekansm – This provides Rizzrak and his nearby allies armor and hitpoints.
Linken’s Sphere – This provides Rizzrak an improvement to his regeneration and stats.
Shiva’s Guard – This item grants Doom Bringer negative armor aura to her enemies and the ability of Arctic Blast.
Force Staff – This helps Rizzrak in chasing and escaping.
Eul’s Scepter of Divinity – This grants Rizzrak the ability to cyclone enemies and himself for chasing, setting and escaping.
Dagon – This grants Rizzrak an ability to instant kill an enemy.
Guinsoo’s Scythe of Vyse – This item helps him to disable any hero giving him the ability of Hex.