If Namor has 15 stacks of Outrage he can Dash Back and hold Block for 1.2 seconds to instantly gain 1 bar of Power and activate IMPERIUS REX.
If Namor has 30 stacks of Outrage he instantly generates up to 95% of his Max Power and activates IMPERIUS REX.
Namor's Special Attacks deal up to 240% additional damage based on active stacks of Outrage.
Special Attacks cost 90% less Power. However, Namor Drains 15% of a bar of Power every second. Each Special Attack Namor launches applies an additional Drain of 5% per second.
While IMPERIUS REX is active, Namor cannot gain Power from any sources other than his own abilities.
Once Namor has 0 Power remaining, all stacks of Outrage are removed and IMPERIUS REX ends.