League of Legends - Champions and Skills
Rammus (The Armordillo)

Idolized by many, dismissed by some, mystifying to all, the curious being Rammus is an enigma. Protected by a spiked shell, he inspires increasingly disparate theories on his origin wherever he goes—from demigod, to sacred oracle, to a mere beast...

Spells
Powerball

Rammus accelerates in a ball towards his enemies, dealing damage and slowing targets affected by the impact.

Defensive Ball Curl

Rammus goes into a defensive formation, vastly increasing his Armor and Magic Resistance, amplifying Spiked Shells' damage, and returning damage to enemies that basic attack him.

Frenzying Taunt

Rammus taunts an enemy champion or monster into a reckless assault against him. Additionally, he gains increased Attack Speed for a short time, but this bonus is extended by having any of his other spells active.

Soaring Slam (ULT)

Rammus hops into the air and slams down at a target area, dealing magic damage and slowing enemies. If cast while Rammus is in Powerball, Rammus knocks up enemies near the center as well.

Passive
Spiked Shell

Rammus' basic attacks deal bonus magic damage, scaling with his Armor.