Format Legality
Tiny Leaders Legal
1v1 Commander Legal
Magic Duels Legal
Canadian Highlander Legal
Vintage Legal
Penny Dreadful Legal
Leviathan Legal
Legacy Legal
Duel Commander Legal
Casual Legal
Commander / EDH Legal

Printings View all

Set Rarity
Commander 2015 (C15) Rare

Combos Browse all




Put X 1/2 green Spider creature tokens with reach onto the battlefield, where X is the number of creatures attacking you. Prevent all combat damage that would be deal this turn by non-Spider creatures.

Arachnogenesis Discussion

ChaosJester on "Bite of Delirium"

3 weeks ago

I am pretty sure that this deck with its key creature spells is perfectly made for Leyline of Vitality which seems to synergize with Assault Formation and your Tokens. It makes your Spider Tokens very powerful in the defence plus it let you start the game and give you life for each creature entering the battlefield. Just imagine: someone attacks you with an army of creatures, you play Arachnogenesis in response, gain an amount of life thorugh two Leyline of Vitality s and get 1/4 Spider Tokens. The only problem with Leylines is, if you consider one of them, then in a playset.

juiicyfruities on "Bite of Delirium"

4 weeks ago

I personally like Coat of Arms for tribal decks. It might be worth running since you also have Arachnogenesis in here. It would be made even better if you ran Spider Spawning . It might not fit perfectly flavor-wise, but it makes your creatures so much stronger. You might alternatively consider running Vanquisher's Banner and Reliquary Tower . Arachnus Web is on theme and is decent conditional removal; it's made much better if you run Arachnus Spinner with it. You could also splash red and add Dragonlair Spider . It doesn't create spider tokens which is unfortunate, but the card is strong.

SynergyBuild on Heavy Metal Bears

2 months ago

ZendikariWol you say Seedborn Muse, a 5 buck card is worth 1 million dollars, then recomment Vampiric Tutor, a 50 dollar card, Demonic Tutor, a 22 dollar card, Thalia, Guardian of Thraben, a 10 dollar card, Rhystic Study, a 15 dollar card, Snapcaster Mage, a 64 dollar card, and Arachnogenesis, an 8 dollar card.


ZendikariWol on Heavy Metal Bears

2 months ago

Scavenging Ooze might help against all the grave shenanigans that happen in commander. I know it isn't at 2 power for long but still worth a looksee.

Seedborn Muse is a million dollars but still it is terrifying.

Arachnogenesis can come out of nowhere if someone alphas you. Thought you won the game? HAHAHAHA!

I'm sure you've heard the rant about how every edh deck should run Rhystic Study by now.

No Chromatic Lantern? It's great mana fixing. Idk if you have color issues with that absurdly expensive mana base, but I, a meager peasant with very little income, find it consistently useful.

Consider Citywide Bust as a sweeper? Other than sadly Sidar Kondo of Jamuraa and Sun Titan, it's totally one-sided.

Demonic Tutor and Vampiric Tutor are any card in your deck.

I'm 89% sure you know, but you have two dudes in your bear sections with three or more power- those being Notion Thief and Thalia, Heretic Cathar.

Speaking of Thalia, no Thalia, Guardian of Thraben?

Speaking of modern staples, no Snapcaster Mage?

Needle Storm might be pretty good, more or less a sweeper for fliers. .

Chibisensei on Defenders Matter

2 months ago

mgc974 Hmm: I might cut the lifegain cards and go for blink and draw and go wide with my board with walls. I might exchange Arachnogenesis with Heroic Intervention. I don't know how i feel about Ghostly Prison and Propaganda. They're good but maybe not for my deck.

Vlasiax I do agree i needed to change the land ratio so that i can add more defenders and had some in mind like Wall of Shards, but i was looking through your deck list and may take your advice into consideration. It's currently at the tuning stage so i may make some changes in the future after playing

mgc974 on Defenders Matter

3 months ago

Arachnogenesis id a good card but i think you Can find better for the deck. I will play Ghostly Prison or Propaganda

Lanzo493 on Thantis' Fog of War

3 months ago

Constant Mists and Moment's Peace are great effects for protecting you from attack. Arachnogenesis is an all star. Cards like Dread, Vigor, and Kazuul, Tyrant of the Cliffs give a pseudo-fog effect because nobody wants to attack into them.

Now for some Voltron cards. I would suggest Assault Suit, Berserkers' Onslaught, and Rage Reflection.

Triumph of the Hordes will give you a win out of nowhere. Copperhorn Scout can keep all of your creatures untapped.

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Arachnogenesis occurrence in decks from the last year

Commander / EDH:

All decks: 0.01%

Green: 0.04%

G/U (Simic): 0.1%

Golgari: 0.03%