Historical Rules · 7 February 2025
Rule 702.156a
Official source text from the 7 February 2025 Rules release
Ravenous is a keyword found on some creature cards with {X} in their mana cost. Ravenous represents both a replacement effect and a triggered ability. “Ravenous” means “This permanent enters with X +1/+1 counters on it” and “When this permanent enters, if X is 5 or more, draw a card.” See rule 107.3m.