Lethality item changes.

"Lethality Items

Lethality items are core for a pretty big group of AD assassins and fighters, but with only Duskblade and Ghostblade commonly used, choices feel limited. We want to make Edge of Night a more attractive option and add a fourth choice to the lineup:

Duskblade is mostly the same.
Ghostblade is also mostly the same.
Edge of Night's spellshield now works like Banshee's Veil, which is a more straightforward effect that avoids the learning curve of an active item while also allowing for clearer counterplay opportunities for opponents.
Sanguine Blade is a new Lethality item that enables split pushing. Its unique passive grants a huge attack speed buff when no allies are nearby.
We’re also exploring a few other potential lethality item options that you may see on PBE.

Doubling the number of attractive Lethality items significantly increases assassins' ability to tailor their early builds to their matchup or game state, but we don't want to kill their later build variety by letting full-Lethality become optimal in every game. Individual items grant fewer stats but now feature a one- and two-piece bonus which preserves the power spikes of assassins' first big purchases. Since this set bonus stops at two, assassins should generally branch into raw-AD items like Guardian Angel or Black Cleaver after their two-item spike. Full Lethality should still feel like a strong option against exceptionally squishy comps, though."

Meanwhile, AP assassin flat pen variety: