Mystrix

Casts a magic circle that deals 600% ATK DMG to all nearby enemy Heroes every second for 4s. Friendly units within the magic circle recover HP equal to 400% of their ATK every second for 4s. Units with a Guard Mark within the magic circle recover an additional 100% of their HP. (Cooldown: 7s.) (This Hero is immune to Inhibit. Every 6s, this Hero gives itself and the friendly Hero with the lowest HP a Guard Mark, which grants immunity to all fatal damage for 4s.)