Fenrir's core mechanic is a stacking set of runes, with each of his abilities gaining a major buff when at a full stack of five. Normally, Fenrir can leap to do damage to an area, leap to do damage to a single target, or buff himself with increased damage and lifestealing. With a full stack of runes, his area leap stuns, his single-target leap becomes an AoE, and his buff becomes more efficient. He can also grow to a massive size, increase movement speed, and carry an enemy god around like a chew toy. Take a look at all of Fenrir's trick in the reveal video past the break, and read up on the full list of changes in the official patch notes.