Nacatl War-Pride

This creature must be blocked by exactly one creature if able. Whenever this creature attacks, create X tokens that are copies of it and that are tapped and attacking, where X is the number of creatures defending player controls. Exile the tokens at the beginning of the next end step.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oan4b73rvpb1hf7o7fwei.