Grolnok, the Omnivore

Legendary Creature — Frog

Whenever a Frog you control attacks, mill three cards. (Put the top three cards of your library into your graveyard.)

Whenever a permanent card is put into your graveyard from your library, exile it with a croak counter on it.

You may play lands and cast spells from among cards you own in exile with croak counters on them.

Legality

Format	Legality
1v1 Commander	Legal
Alchemy	Legal
Archenemy	Legal
Arena	Legal
Block Constructed	Legal
Brawl	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Gladiator	Legal
Highlander	Legal
Historic	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Modern	Legal
Oathbreaker	Legal
Pioneer	Legal
Planechase	Legal
Pre-release	Legal
Quest Magic	Legal
Standard	Legal
Vanguard	Legal
Vintage	Legal

Discussion (10)

Formless0209 on Ribbit!!! Ribbit!!! Feed the Frog

2 days ago

My frog is better than yours. {GU}Grolnok, the Omnivore{GU}

seshiro_of_the_orochi on Can an Adventure be cast …

6 months ago

This whole interaction is part of why Grolnok, the Omnivore has that high a density of adventures in its list.

seshiro_of_the_orochi on Originals

1 year ago

Mishra, Artificer Prodigy with Possibility Storm is an oddball all by itself.

A little shameless self-plugin, I'm currently building Grolnok, the Omnivore as a "flash-in from exile" style deck. If you're interested, you can find it somewhere on my profile.

SacredAtsira on Whoopsidisi!

1 year ago

mlequesne I had considered it, but honestly, I don't know what to cut for it I'm also gonna be adding Grolnok, the Omnivore and a few others, but at this point the deck is still in teething stages having only had one game, I don't know what performs well and what needs to be cut

Neotrup on did rules about counters change? …

2 years ago

Counters can work in a couple different ways depending on the card. As mentioned, both your examples will only work while the creature is around, but if a second copy of the creature is played it can use the counts. This method is used by a number of Legendary creatures like Grolnok, the Omnivore and Mairsil, the Pretender so that if you have them as your commander and they die, you can replay them and they'll still see the things they exiled, in contrast to things like Kaho, Minamo Historian or Rona, Disciple of Gix that forget about things they exiled since they're a new creature (even though they're the same card that exiled them).

Some other effects that use counters will grant an ability for as long as the counter is in play (as opposed to the source of the counter), or grant an ability in addition to the counter, where the counter doesn't actually do anything but is placed there as a physical reminder that the permanent gained the ability. Obsidian Fireheart is an example of the first, the blaze counter doesn't actually do anything, but if it is removed the land loses the upkeep trigger. The Book of Exalted Deeds is an example of the latter, even if the counter is removed the ability remains, but the counter serves as a reminder of which angel has the ability.

Rhadamanthus on did rules about counters change? …

2 years ago

It depends on exactly what we're talking about. Cards like Rimescale Dragon and Grolnok, the Omnivore make a counter with no inherent meaning in the rules, and it's the static ability of Rimescale/Grolnok itself that actually has the effect. If they aren't on the battlefield then the counters don't mean anything.

Other cards might make a counter that does have a special meaning in the rules (+1/+1, "first strike" or other ability counters), in which case the counter always means something. Another way is that if the effect that gives a counter meaning is created by the resolution of a spell or an activated/triggered ability, then the counter will also continue to mean something if the source goes away.

What are some of the specific examples you've seen in MTG Arena that don't seem to behave in the expected way? Knowing the details will help to explain why they work the way they do.

Sismir on did rules about counters change? …

2 years ago

I have always been told that if i have Rimescale Dragon on the field and placed a ice counter on a creature that counter only works while rimescale dragon is on the field... but i see so many examples of situations especially in MTG arena where this is not the case. is it only a rule on the battlefield or would Grolnok, the Omnivores counter work on cards he exile even if he die? :S

ObIviom on Your Favorite Plays

2 years ago

One of my favorite plays of all time, I was playing with my friends, I had this super sick Memnarch deck, Most games I would slam down double, triple mana, and use that to combo off, well this was one of those games. I landed Planar Bridge and Unwinding Clock, tutored out a Mycosynth Lattice, and Padeem, Consul of Innovation and was feeling really good, hard to stop me at this point. So then I tried to tutor out Darksteel Forge to really make it impossible to stop my reign of terror. My friend responded with a well timed Emergence Zone activation into Vandalblast. My heart sunk sooo hard. My mind was racing, how could I get out of this? Well, That game had tons of interaction, I think i spent all off my counterspells already. I had no clue, So I counted all of my cards in graveyard, and thankfully, Since i knew my deck really well, I knew I had one more counterspell left. I managed to dig really hard with instant speed cantrips, to find my last counterspell, Arcane Denial.

I had dug down to the last few cards in my deck, I had finite mana, finiite spells, and just a dream, and I managed to get it. It was absolutely beautiful, and my playgroup still talks about it years later.

More recently, I was playing cEDH and was against a Grolnok, the Omnivore deck, I landed a Dauthi Voidwalker to keep the frog from activating a Hermit Druid they had, that player managed to bounce the Dauthi next turn, and activated the Druid. Everybody thought we were dead to Thassa's Oracle, but I pulled out my secret weapon. Scout's Warning to flash in Dauthi Voidwalker, to steal the frog's entire deck, just to use a Command Tower with a void counter on it, as my last land needed to win with Aetherflux Reservoir + Bolas's Citadel + Sensei's Divining Top