Weapons

https://www.google.com/search?q=List+of+weapons+used+in+Mahabharata+Ramayana

Kekaya

 https://www.google.com/search?q=Kekaya

Nishada

 https://www.google.com/search?q=nishada

Anjalikastra

Anjalikastra is a celestial weapon in Hindu mythology. Anjalikastra was a personal astra (mythical weapon) of King of Gods- Indra. According to Hindu puranas/ithihasas, using this weapon on opponent, this cuts the head of the opponent. In some stories, it is also said that Lakshmana- brother of Lord Rama used same Anjalikastra to kill Indrajit. This astra came into prominence when Mahabharat's hero Arjuna used it to kill Karna.

https://www.google.com/search?q=Anjalikastra

Skanda

Stylistically, the Skanda Purana is related to the Mahabharata, and it appears that its composers borrowed from the Mahabharata. The two texts employ similar stock phrases and compounds that are not found in the Ramayana. Some of the mythology mentioned in the present version of the Skanda Purana is undoubtedly post-Gupta period, consistent with that of medieval South India. This indicates that several additions were made to the original text over the centuries. The Kashi Khanda, for example, acquired its present form around the mid-13th century CE.The latest part of the text might have been composed in as late as the 15th century CE.

https://freeglobaluniversity.blogspot.com/search/label/Skanda