text: In Shinto myth, a god's arm turns into an icicle during an instance of this activity when it is used to decide the ruler of Japan by Takemikazuchi and Takeminakata.
full_question: In Shinto myth, a god's arm turns into an icicle during an instance of this activity when it is used to decide the ruler of Japan by Takemikazuchi and Takeminakata. In the Mahabharata, Krishna uses a blade of grass to demonstrate to Bhima how he can defeat Jarasandha in this activity. A Libyan giant uses the skulls of his victims in this activity to build a temple to his father Poseidon. In the Prose Edda, Elli is an old hag who is able to defeat Thor in this because she is a personification of old age. Atalanta defeats Peleus in this, and Heracles kills a practitioner of it in midair because he draws his strength from the earth. The giant Antaeus kills travelers after challenging them to this athletic competition. For 10 points, name this activity invented by the Shinto gods in its "sumo" form.
first_sentence: In Shinto myth, a god's arm turns into an icicle during an instance of this activity when it is used to decide the ruler of Japan by Takemikazuchi and Takeminakata.
raw_answer: wrestling [accept sumo wrestling; prompt on "combat," "fighting," etc.]