Keeper of the Light + Witch Doctor

Why this works

Picking these two supports together often comes from wanting a lane with endless spell spam. Keeper of the Light can solve any mana problems Witch Doctor has with Chakra Magic, letting him throw Paralyzing Cask and Maledict off cooldown without a second thought. This creates a lot of pressure through attrition. Later on, the idea is that Keeper of the Light can use Blinding Light to knock enemies back into a Death Ward, or to peel for Witch Doctor while he channels. It all looks good on paper, providing both sustain for harassment and a potential teamfight combo.

The reality is that both heroes are very fragile and lack escape, making them an easy double-kill for aggressive opponents. Their setup is also less reliable than it seems. Blinding Light is a difficult spell to aim for a specific lockdown, and Paralyzing Cask bounces can be unpredictable. Witch Doctor often prefers a partner with a guaranteed stun to hold a target for his Maledict and Death Ward. While the mana from Keeper is always helpful, the lane's lack of durability and reliable kill setup means any early advantage can evaporate the first time they get jumped.