Ravenous in MTG: Rules, History, and All 12 Cards Ranked

Last updated on July 23, 2026

Ravener | Illustration by Xavier Ribeiro

Magic players got a taste of the Warhammer 40k universe in 2022 when WotC released an entire set of 40k-inspired Commander precons. The Tyranid Swarm precon introduced the ferocious tyranid army to Magic, along with the swarm’s new “ravenous” mechanic.

Hope you've worked up an appetite, because there's a lot to chew on here.

How Does Ravenous Work?

Tervigon | Illustration by Xavier Ribeiro

Ravenous creatures have X in their mana costs and enter with X +1/+1 counters. If X was 5 or greater, you draw a card.

This is technically two abilities in one: a replacement effect, and an ETB ability. The replacement effect modifies how the creature enters the battlefield (with X +1/+1 counters), while the ETB effect is the part that draws a card and uses the stack.

Since the card draw is the only part of ravenous linked to an ETB effect, cards like Panharmonicon will double your card draw, but will not double your +1/+1 counters.

The History of Ravenous in MTG

Ravenous was introduced to Magic in 2022’s Warhammer 40k Universes Beyond collection of Commander decks, which brought new creature types and mechanics to Magic.

Ravenous was originally exclusive to this set and only appeared in the Tyranid Swarm precon, though it has since been used outside that deck with Jacked Rabbit from Bloomburrow Commander.

Is Ravenous an Activated Ability?

There is no activated ability associated with ravenous. As mentioned above, ravenous is part replacement effect, part triggered ability, not an activated ability.

What Is Ravenous X?

Ravenous doesn’t have a number attached to it so you won’t see text like “ravenous 2” or “ravenous X” on cards. Ravenous references the X in a card’s mana cost, but the ability itself doesn’t have an assigned number.

When Do Ravenous Creatures Get Their Counters?

+1/+1 counters are put on ravenous creatures as they enter the battlefield. Once the creature hits the board it already has counters on it, and there’s no window to use removal on it before it gets the counters.

What if Another Permanent Enters as a Copy of a Ravenous Creature?

Permanents entering as copies of ravenous creatures won’t normally have a meaningful effect. Nothing special happens if you use a Clone effect that comes into play as a ravenous creature. Since the clone spell didn’t have ravenous, the creature doesn't enter with any extra +1/+1 counters, and you won’t draw a card since X is treated as 0.

Even if the clone has X in its own mana cost, as seen on Altered Ego, ravenous doesn't trigger. In this situation it enters the battlefield as a copy of the ravenous creature with +1/+1 counters equal to the X value you paid for Altered Ego, but ravenous doesn't give any extra counters or draw you a card.

If you copy a ravenous creature while it’s still on the stack, the copy has the same X value and enters the battlefield with the same number of counters as the original. If that value is 5 or greater, both the copy and the original draw cards when ravenous triggers.

Copying ravenous spells was the reason Magus Lucea Kane was included as the alternate commander for the Tyranid Swarm precon.

What if a Ravenous Creature is Copied?

Creating a token copy of a ravenous creature works similarly to cloning it. The copy enters the battlefield, but since it wasn’t cast there’s no X value for ravenous to reference, so it doesn't enter with any extra counters even if the creature it’s copying has counters on it. You also don’t draw a card since X is treated as 0 for the copy.

Does Apocalypse Hydra Have Ravenous?

Apocalypse Hydra doesn’t have ravenous, but it might be the inspiration for the ability. It shares the “if X is 5 or more” text with ravenous, but the outcome is different. There’s also no ETB effect associated with Apocalypse Hydra’s ability.

Gallery and List of Ravenous Cards

• Aberrant
• Broodlord
• Exocrine
• Hormagaunt Horde
• Jacked Rabbit
• Mawloc
• Ravener
• Sporocyst
• Termagant Swarm
• Tervigon
• Tyrant Guard
• Zoanthrope

Ravenous Cards Ranked

#12. Hormagaunt Horde

Hormagaunt Horde is an unimpressive creature at any point before achieving the ravenous bonus, which makes it a 6-drop that scales down poorly. The recursion ability is also expensive, which makes this a late late-game value engine.

#11. Broodlord

Broodlord charges 9 mana before you get the ravenous bonus, and the counter distribution is still expensive. Save this one for the all-in X-spell decks.

#10. Ravener

There are some flavors of Simic decks that might want this bulky goad-adjacent tyranid. Hard to imagine too many synergy opportunities for Ravener, but pointing a key creature away from you for a turn, or redirecting a utility creature to its ultimate demise are both fine outcomes.

#9. Termagant Swarm

Having to die to realize the value on Termagant Swarm hurts its prospects. Running this out as a Sprouting Thrinax of sorts is fine, but once you've triggered ravenous, do you really want your 6/6 or 7/7 swarm to die?

#8. Tervigon

Tervigon‘s a tyranid that you're perfectly fine running out earlier, so long as you back it up with pump spells or something else that helps it connect in combat. It's all the better in the lategame when it's a 5/5 trampler that pumps out five tokens in combat.

#7. Zoanthrope

Zoanthrope is a fireball in creature form, and a wincon with infinite mana. The keywords are nice additions here, and it's fun to see an Izzet take on a ravenous creature.

#6. Aberrant

Much like Tervigon, Aberrant‘s a solid late-game play that's still fine to run out early with the right evasion suite to back it up. This is a worse 3-drop than Trygon Predator for what it does, but Trygon Predator doesn't become a 6/6 cantrip creature with more mana at your disposal.

#5. Jacked Rabbit

The sole white ravenous creature not associated with Warhammer 40k, Jacked Rabbit‘s a great 2-drop if you can follow up with any sort of counter distribtuion, anthem effect, or so on. It also produces the first token with no extra mana investment needed, and scales up from there. You don't see a lot of white X-spell creatures like this.

#4. Sporocyst

For decks designed to pump out tons of mana, Sporocyst is a nice middleground between your first ramp spell of the game and everything that comes after. Three mana is already on par with a Wood Elves-style creature, and 5 mana double-ramps. You need 11 mana before you get ravenous, but at that point you're up five extra basics and another card off the top.

#3. Tyrant Guard

Tyrant Guard acts like a Heroic Intervention for countered-up creatures you control. It plays into all your usual counter synergies while protecting your other pieces, and it's rare that your protection piece is also a potential beater.

#2. Exocrine

Exocrine mimics Earthquake and converts your mana into damage. It's often the last creature standing and usually puts everyone’s life totals in the red zone (including you!).

#1. Mawlock

Mawloc is an impressive removal creature. It often draws a card from the ravenous ability while exiling an opposing creature, representing a clean three-for-one and leaving a large body on board.

Decklist: Magus Lucea Kane in Commander

Magus Lucea Kane | Illustration by Bartek Fedyczak

This deck capitalizes on ravenous creatures by combining them with other X-spells and ramp effects. Magus Lucea Kane takes the place of The Swarmlord from the precon since this deck is more focused on mana production than on +1/+1 counter synergies.

This is firmly in Bracket 3, with a couple above-rate Game Changers, but a mix of midrange creatures to round everything out.

Ravenous for More?

Zoanthrope | Illustration by Billy Christian

Ravenous is a solid addition to Magic. “X-spells” is a real archetype at this point, with commanders like Rosheen Meanderer and Zaxara, the Exemplary spearheading their own versions of the deck. The Warhammer 40k ravenous creatures are excellent additions to these decks while being generically powerful tools for any deck that can make tons of mana.

I expect ravenous will make periodic returns, maybe tied to new hydra creatures since the counter-granting ability is so close to how a lot of hydras in Magic work. Have you found a home for the ravenous tyranids in your Commander decks? I’d love to hear about it in the comments below or over in the Draftsim Discord. And check out The Daily Upkeep newsletter to stay up to date on all the latest MTG news.

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