The ring urges Sentinel to fire instead of holding back, a blast of lethal force rockets from his hand as the willing Sentinel's own will is easily overcome by the power of avarice and greed.
Except the blast doesn't hurt Nemesis, it doesn't even hit him, it bounces back towards the Orange Sentinel.
SpoilerToughness save DC 32 also the ring gives you a +4 to your normal toughness.
"You can't beat me Lantern, you're strong, but you're not that strong." Sword's tone is firm, unafraid.