Disable Sanguine Blade and actually balance it
Sanguine Blade is stupidly overpowered and must be disabled until it is fixed. Too much attack speed while facing a lone enemy (making this item mandatory for any ad top lane) and too much lifesteal, especially on champs like Warwick and Darius, making them unkillable. This one item is going to force jg players to stay topside just to counter this item since it's way too powerful in its current state. Lower the attack speed to 30-60% based on level and increase the radius for the attack speed decrease. If you choose not to change this, then add dagger(s) to the build and make this item cost equivalently to Infinity Edge or Rabadon's Deathcap. Based on what I've seen, this item changes the game on that level.