Want a good intense sentence?
But the ring would not be denied.
That’s a good one. JRRT dropping a banger.
It’s got some aspects worthy of consideration. The ‘But’ beginning establishes conflict. The sentence isn’t too wordy. The final ‘denied’ is a good, strong one, and supports the implicit conflict of the opening, augmented by ‘not be’ denied. There is a lot of conflict within that sentence purely grammatically, and the ring as a focus of the narrative is a tool of conflict.
Furthermore the ‘would not be’ implies a desire and a will. Both are good for the narrative, but also support the conflict. The ring wants something, and that’s pretty clear.
That’s what you do to make a sentence intense. Make it short but laden with conflict. Give it a clear meaning, and leave the implications nebulous. It sets up later events.