Building Master Yi this way enables him to optimize the effectiveness of his damage by keeping him alive longer. His true damage and attack speed compensates for the lack of AD items allowing him to still deal damage in fights and have greater initiation power through his survivability.

Pros: -Much more durable than full damage build
-Still does a ton of damage through his built in true damage
-Can initiate and survive

Cons: -Less damage than conventional yi build
-Less assassination ability