Altar of Dementia


Format Legality
Vintage Legal
Duel Commander Legal
Commander / EDH Legal
Legacy Legal
Tiny Leaders Legal

Printings View all

Set Rarity
Conspiracy Rare
Tempest Rare

Combos Browse all

Altar of Dementia


Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of his or her library into his or her graveyard.

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Cardhoarder (MTGO)

9.35 TIX $6.35 Foil

Isle of Cards

$3.42 Paper


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Altar of Dementia Discussion

Starsky2814 on Michael Bay presents... Omnath: Age of Explosions

2 days ago

KingMathoro, all three cards would make great additions. Though I am leaning more towards adding Craterhoof Behemoth back into the deck over Overwhelming Stampede. As for Triumph of the Hordes, this has been a card I have been putting much thought into adding. How I see it while paired with Omnath and his loyal subjects... gg! I think I could replace Ashnod's Altar with your recommendation of Altar of Dementia. Milling out an opponent while another takes the bolts is like taking out two birds with one stone, I like. Thank you for your support on my claim to the throne of king a$$hole.

KingMathoro on Michael Bay presents... Omnath: Age of Explosions

2 days ago

Have you thought about running things like Overwhelming Stampede, Triumph of the Hordes, Altar of Dementia in the deck? The first two do not need any explanation but Altar is fun because you can mill someone out and also something you may find interesting is that if Omnath has infect when he bolts things he bolts with infect. Which to me just seems silly for the throne of king a$$hole. What do you think?

MagicBlues on Sidisi, Brood Tyrant

2 days ago

I like your take on Sidisi. It seems to include enough Zombie matters cards for your tokens to be relevant while also having a good amount of enablers. The following cards are enablers I think might be quite good:

Embalmer's Tools: works similarly to Altar of Dementia in allowing you to turn your Zombies sideways for more or let you combo off with Undead Alchemist

Necromancer's Stockpile: Cycle trough your deck while creating an army (works wonders if you add some cards with Dredge)

I guess I would cut Dowsing Shaman since you run only four enchantments

Fresh303 on Karador Multiplayer Boonweaver Combo/Control

3 days ago

Emzed, that seems more narrow than Torpor Orb effects, which see slightly more play than Cursed Totem. Not to mention that even if you were locked down by the Totem, you would need to have exactly Altar of Dementia or Skullclamp to recur Reclamation Sage because your creature sac outlets would be locked down as well.

DarkJunderMaster on Meren of Clan Combo

4 days ago

If you have Grave Pact and Dictate of Erebos, Butcher of Malakir is not needed. Why was Devoted Druid taken out? I would consider placing it back in but add in the combo piece for him Devoted Druid + Quillspike . You get an infinite power and toughness creature. With cards like Altar of Dementia it could be a mill combo or sacrifice it to Jarad, Golgari Lich Lord and kill all of your opponents. If no one has an answer to this you instantly win. There is also the OG Mikaeus, the Unhallowed + Triskelion or Necrotic Ooze + Phyrexian Devourer + Triskelion . How this one works is by having Phryexian Devour and Trike in the graveyard with Necrotic Ooze on the batrlefield. TAKE A look at my They Will Never Die deck. Otherwise good deck build. +1

TheDarkSlayer21 on Marchesa

5 days ago

Ok, there are typically two ways of making a Marchesa deck. The first way is to put in a lot of creatures that can get +1/+1 counters easily (Cards like: Anthroplasm, Aetherborn Marauder, Butcher Ghoul, Carrion Feeder or Unleash/Modular cards). The problem is, these cards hardly do anything other than putting counters on themselves. Their pretty much duds. So to make up for this, people will put in good sac outlets, (Cards like: Mind Slash, Phyrexian Altar, Ashnod's Altar, Altar of Dementia, Attrition, etc.) This type of deck gets its engine running STRICTLY from it's sac outlets, (NOT FROM ITS CREATURES) and because of this, it is a bit more reliant on its commander.

The second type of deck is my preferred method of playstyle. Whereby, the deck is not RELYING on its sac outlets, (although it does have a few) but rather on the ETB/graveyard triggers of creatures (Cards like: Mulldrifter and Harvester of Souls). With this type of deck, you're also not fully relying on your commander. Marchesa is just a perk. If you don't have her out, you can still play your creatures and benefit from them.

Also keep in mind, that it isn't too hard getting +1/+1 counters on your creatures just using the dethrone ability itself. I find that most, if not all the time, you will NOT be at the highest life total; especially if you have Necropotence, Ancient Tomb, Unspeakable Symbol, shock lands, fetch lands, and pain lands in the deck.

This is the Marchesa deck that I personally made. You're welcome to look at it for suggestions.


Commander / EDH TheDarkSlayer21


Some cards that I would highly recommend putting in the deck are:
- Sneak Attack
- Rune-Scarred Demon
- Demonic Tutor
- Necropotence
- Consecrated Sphinx
- Diabolic Intent
- Mind Slash
- Thalakos Deceiver
- Phyrexian Tower
- Scourge of the Throne
NOTE: If you do decide to have this deck be a bit more ETB heavy, Deadeye Navigator and Rite of Replication are good cards to help abuse the ETB triggers.

dreamistt on Mah Merfolk Tribal

1 week ago

Remove Spreading Seas, Always Watching ,Aquitect's Will and Burnished Hart.

Trade your Fumigate for a Dusk or Fell the Mighty or Retribution of the Meek or Solar Tide.

Drowner of Secrets + Intruder Alarm + Stonybrook Schoolmaster is a combo you could consider. Altar of the Brood also fits in.By using Merrow Reejerey to untap an Azorius Chancery you can achieve infinite mana through a Cloudstone Curio if you have 2 merfolks with cmc = 1 (or cost reducing), so you might want to consider Kefnet's Monument and Sapphire Medallion.Cloudstone Curio would also work for infinite tokens and even infinite mana if you use +Paradox Engine untaps your merfolk and mana rocks whenever you cast a spell. Spell Burst can lock everyone if you manage to generate in mana rocks/creatures, for instance.

+High Tide doubles up your mana for a turn

+Scourge of Fleets


Maybe Blustersquall, maybe Breaking Wave, maybe Faces of the Past (this one combos with Schoolmaster + Altar of Dementia/Blasting Station).

Maybe Retreat to Coralhelm + Walking Atlas + Oboro Breezecaller (infinite mana with a land that taps for 2 mana or simply infinite landfall for Altar of the Brood)

Maybe consider Blue Sun's Zenith since with infinite mana you can draw every card of your deck or force someone to deck out.

Maybe Winter Orb since your average CMC is so low and you'll have ways of untapping stuff (it'll lock everyone else out)

crosleydr on Oops, it went to your grave (Esper-Mill)

1 week ago

Por algum motivo a linguagem html desse site impede o uso de acento, ento boa sorte lendo hahaha.

-2 Altar of Dementia
+2 Mind Grind
um bom mill, disponvel no modern E baratinho. Deve ter na Domain, mano.

-2 Glacial Chasm
+2 Terrenos Bsicos / +2 Shelldock Isle
Glacial Chasm infelizmente no Modern, e no tem muito o que substituir no formato atual. Um terreno que vire criatura uma opo, mas eu no acho que seja igual, nem de longe. Eu colocaria 2 terrenos bsicos de acordo com a mana base, mas o Shelldock uma boa forma de conjurar algumas mgicas extras diminuindo seu CMC.

-2 Consuming Aberration
+2 Suffer the Past/ +2 Crypt Incursion
Consuming Aberration uma carta bem cara, e que infelizmente no causa impacto assim que entra na mesa. Ele forte pro deck, mas fica nisso, um corpo pesado que faz o efeito se sobreviver ao prximo turno. Como poucas criaturas so relevantes no seu deck, bem provvel que ele v ser removido (j que o oponente no ter gasto seus removals) antes de causar algum impacto. Como o Glacial Chasm deve ser retirado, pensei que o deck continua precisando de um sustain contra matchups como Burn, e qualquer outro tipo de aggro. Lifegain uma forma de se manter vivo enquanto voc mantm o plano de millar o deck do cara. Suffer the Past mais agressivo e tem menos sustain, porque dependente da sua mana, mas Crypt Incursion no tem agressividade nenhuma, embora tenha um sustain absurdo dependendo do deck.

Leyline of Sanctity um side bem comum nos decks que usam branco e que faz voc perder automaticamente a partida contra o deck. importante pensar em removals de encantamentos, pelo menos para o sideboard.

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