In some measure, a familiar story. The knight in danger, his cruelty, dreams , selfishness, greed and brutal reaction, ingratitude and wiekness, stupidity and ddesire of immortality. The precis portrait and the advise of a talking rock ( the memories about Neverending story by Michael Ende are a good source about familiarity with the conversation scenes )and a not less predictable end .
The atmosphere, the acting, the reactions of knight are just the virtues defining this short fantasy as good exercise of return to shadows of childhood or to simple forms of profound greed.
In short, a seductive story, well crafted end , fine solutions for define each character and nice portrait of ingratitude and illusion.
So, just seductive.