Guinsoo's Rageblade

+25 Attack Damage
+25 Ability Power
+25% Attack Speed

Passive: Basic attacks deal 5 (+10% Bonus Attack Damage) physical and 5 (+10% Ability Power) magic damage on hit.
UNIQUE Passive: Basic attacks grant +8% Attack Speed, +4% Bonus Attack Damage, and +4% Ability Power for 5 seconds (up to 6 stacks). At max stacks, gain Guinsoo's Rage.

Guinsoo's Rage: Every other basic attack triggers on hit effects twice.

While at half stacks, melee champions' next attack will fully stack Rageblade.