Devoted Mardu

Vigilance Mobilize X, where X is your devotion to Mardu. (Whenever you attack, create X tapped and attacking Mardudes (tapped and attacking 1/1 red Warrior creature tokens). Sacrifice them at the beginning of the next end step. I'm out of room. You remember what devotion does, right? Counts {R}, {W}, and {B}!)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oev2sakxjpb1hg2i833i5.