Passive: On cast, attacks gain stacking bonus magic damage. Starting from the third cast, gain true damage instead. Active: Gain
Shield for X seconds, then slice open a rift on the largest group of champions dealing the Passive's bonus damage to all enemies within. Enemies have their Attack Speed slowed while allies within gain Attack Speed, both rapidly decaying over X seconds.
Your team gains 12 Armor and Magic Resist. Bastions gain more, and the value doubles in the first 10 seconds of combat.