A core item that lets you activate {black-king-bar} and Berserker's Call twice in fights, locking down enemies for longer without being disrupted.
A core item that can win you the teamfight and the game with double Echo Slam. Works incredibly well in combination with {blink-dagger} and {aghanims-scepter}.
A core item primarily for another Requiem of Souls and a second {black-king-bar} charge. Has great synergy with {yasha-and-kaya} to quickly cast your ultimate twice.
A late game pick up that to have double Eye of the Storm and {black-king-bar} in fights to significantly increasing your damage output. You can use the second ultimate while the first is running as they do their damage and armor reduction separately.
A core item that lets you get off your massive AoE damage and control spell combo a second time. Be careful about your mana pool when casting your spells a second time with {refresher-orb}.
A late game pick up that makes you extremely potent in teamfights with double Chain Frost. Be careful about your mana pool when you are looking to cast your ultimate twice with {refresher-orb}.
A core item that can win you the teamfight or take the enemy throne with double Mass Serpent Wards. Most effective with the level 25 talent.
A core item that can win you the teamfight and the game with double Ravage. Be careful about your mana pool when you are looking to cast your ultimate twice with Refresher.
A core item that can win you the teamfight and the game with double {black-king-bar}->Black Hole.
A core item that makes you extremely potent in teamfights with double Chaotic Offering. Be careful about your mana pool when you are looking to cast your ultimate twice with Refresher.
A late game pick up primarily for a second Primal Roar in teamfights and possibly delete two enemy heroes with a long lasting stun.
A late game pick up that lets you do massive damage all over the map with double Wrath of Nature. Lets you push out practically all creep waves and works well with {aghanims-scepter} to chain root enemy heroes.
A core item that makes you extremely potent in teamfights with double Macropyre upgraded with {aghanims-scepter}. Be careful about your mana pool when you are looking to cast your ultimate twice with {refresher-orb}.
A late game pick to have two rounds of your devastating spell combo and do massive damage in teamfights. Particularly useful with the Exort {aghanims-scepter} to cast Cataclysm and massive Meteors twice. Also has great synergy with the level 25 radial Defeaning Blast talent.
A core item that can win you the teamfight with double Global Silence. Works well to counter high impact AoE control spells on the enemy team, like Black Hole.
A core item to have two Primal Splits and maintain your impact on the map.
A core item that will let you use your ultimate a second time. Since the first time might not be enough as most heroes have a way of dispelling it, being able to use it twice could lead to winning a teamfight.
A core item that can win you the teamfight and the game with double Static Storm. Works incredibly well in combination with {aghanims-scepter} and {blink-dagger}.
A core item that can win you the teamfight and the game with double Reverse Polarity. Be careful about your mana pool when you are looking to cast your ultimate twice with {refresher-orb}.
A core late game item that refresher all abilities and items, including BKB and Fire Remnant so that you can keep spamming spells and items in fights.
A core item that can win you the teamfight and the game with double Supernova.
A late game item that makes you extremely potent in teamfights with double Winters Curse. Be careful about your mana pool when you are looking to cast your ultimate twice with Refresher.
A late game pick up that gives you a second round of Mortimer Kisses to do massive AoE damage from long range.
A late game pick up primarily for a second Pulverize and {black-king-bar} charge. Lets you stun lock and delete an enemy core in fights if they cannot cancel your ultimate through BKB.