Dark Knight's Greatsword

Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature gets +3/+0 and is a Knight in addition to its other types. Chaosbringer — Equip—Pay 3 life. Activate only once each turn.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6okauuepj1pb1hdeu4ytbt.