5e SRD:Ring of the Ram
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Ring, rare (requires attunement)
This ring has 3 charges, and it regains 1d3 expended charges daily at dawn. While wearing the ring, you can use an action to expend 1 to 3 of its charges to attack one creature you can see within 60 feet of you. The ring produces a spectral ram's head and makes its attack roll with a +7 bonus. On a hit, for each charge you spend, the target takes 2d10 force damage and is pushed 5 feet away from you.