Rammus receives bonus attack damage equal to 25% of his total armor.
Cost: 70 / 80 / 90 / 100 / 110 mana
Active: Rammus enters a rolling ball state for up to 7 seconds, constantly accelerating from an initial bonus 3% move speed up to a bonus 165% move speed. While in this state, Rammus cannot attack or use Puncturing Taunt. Activating Defensive Ball Curl or re-activating Powerball during its duration will end the effect instantly.
Upon colliding with an enemy unit, all nearby enemies are briefly knocked back, take magic damage, and are slowed for 3 seconds afterwards. Rammus reverts to his normal state as well.