Free Spells and Free Wins: Simic Omniscience

Hello my fellow Planeswalkers! I’m The MTG Hero, and with Standard 2025 winding down, the meta is finally starting to shift. After several rounds of bans, aggressive decks have taken a noticeable hit, while slower strategies packed with efficient, powerful interaction have risen to the top. And whenever midrange and control take center stage, you can bet combo decks won’t be far behind.

Not long ago, a terrifyingly consistent and resilient combo deck emerged from Edge of Eternities—a deck that absolutely feasted on midrange and control strategies. It was fast, it was hard to disrupt, and it was brutally effective.

The only thing that kept it in check? Mono-Red. But with the red menace finally reined in by those same bans, it feels like the community has collectively forgotten about one of the most dangerous combo decks in the format: Simic Omniscience.

“Omniscience?” you might be asking.
Yes, it costs ten mana.
Yes, it’s actually playable.
And yes—it really is that good.

Because this is Simic, and if there’s one thing Simic never does, it’s pay full price.

So let’s break down the deck and why it just might be your ticket to Mythic

The Deck

This is a straightforward, highly repetitive combo deck that wants to interact as little as possible and simply execute its own game plan. That does mean many games feel like you’re “playing solitaire,” but that’s the nature of linear combo. When you pilot a deck like this, I believe your matches generally break down like this:

50% of the time you have a clean path to victory. Your deck does its thing uninterrupted. If you know your lines and sequence properly, these games are easy wins.
30% of the time you have to get creative. Matchup knowledge, reading your opponent, spotting key outs, and finding high-skill lines all matter to pull out the win.
10% of the time it’s a complete grind. You need everything above—twice over—plus a bit of luck.
And the final 10% of the time, nothing comes together. You draw poorly, brick, get outraced, or your opponent simply has all the answers.

If you’re comfortable with that reality, then congratulations—you might just be the dreaded combo player, and you’ll probably do very well with this deck.

Why the Deck Is So Consistent

This deck is incredibly consistent thanks to some of the best card selection in Standard: Consult the Star Charts and Stock Up. Both let you dig deep and find exactly what you’re missing.

You also have Roiling Dragonstorm, which becomes the engine once the combo is online, and Marang River Regent, which allows you to loop Dragonstorm repeatedly. Marang also doubles as a powerful draw spell thanks to its Omen half.

Now that we understand the engine, let’s talk about how to fire it up.

The Combo

Everything begins with your opening hand. This is a three-card combo:

• A station land: Evendo, Waking Haven or Thros, Titanic Godcore
• Kona, Rescue Beastie
• Omniscience

If you don’t have at least two of these three, I strongly recommend a mulligan. You can safely go to five if needed. After that, it’s truly “heart of the cards” territory. Anything beyond your combo pieces is just bonus material.

I always lead with my station lands early, because it’s critical that our fourth land enters untapped once we’re ready to combo. From there, I cast draw spells as needed, usually favoring Dragonstorm on turn two. Consult gets better as your land count grows, but don’t be afraid to fire it off early and only look at two cards—at this point, we’re not playing for value, just for assembly. Turn three, you want Stock Up to grab any missing pieces.

Against aggro, we buy time with Lost in the Maze and Unauthorized Exit to keep pressure off while we assemble. Thankfully, most aggro decks in this meta rely on one or two large threats rather than going wide, so single-target interaction is usually enough. The main exception is Simic Aggro, which often ends games with a massive board and Ouroboroid—but even that can be handled by bouncing it before combat.

Against decks loaded with instant-speed removal, Lost in the Maze pulls double duty. Once Kona resolves, we immediately get priority to tap it with our station land before the opponent can respond. Since Kona is now tapped, Lost in the Maze grants it hexproof, letting us safely slam Omniscience through a hand full of removal.

Even against Get Lost, which is arguably the best card against this deck,Omniscience still resolves first. That gives us the opportunity to protect it with a counterspell or immediately deploy a backup Omniscience before they can remove it.

In niche situations, I’ve even used Lost in the Maze late-game to tap my own Kona when I couldn’t find a station land. It still grants hexproof, and it still enables the combo—often catching opponents completely off guard.

Besides our station lands, ”Cavern is our most important land. It allows us to play a Kona past counterspells to combo off or even sneak in a Marang. Against blue decks always get one if you can.

Going Off

Turn four is where the deck truly comes alive. Slam Kona, use your station land to tap it, and in your second main phase you sneak in a free Omniscience.

From there, everything is free. You unload your draw spells, dig for Marang, return Roiling Dragonstorm to your hand, and start bouncing your opponent’s board. Once you find a second Marang, the deck goes infinite:

• Cast the second Marang
• Return Dragonstorms
• Bounce the first Marang and an opposing permanent
• Recast Dragonstorms
• Repeat

In some cases, you may need to bounce Marang with Unauthorized Exit while digging for the second copy and that’s perfectly fine. Whatever keeps the chain going.

Eventually, you draw through your entire deck, carefully tucking excess lands to the bottom so you don’t deck yourself. You end with a battlefield full of 3–4 Omniscience, four Marangs, a Kona, and a grip of Dispelling Exhale and Unauthorized Exit.

Your opponent has no board. They can’t resolve spells. Anything threatening gets bounced. Anything harmless gets countered.

Then you attack for 28 damage.

Game over.

There are games where you fail to find Omniscience and will have to use Kona to sneak in a Marang to bounce some threats. But that happens. It just means you can reset next turn and try again. Just do whatever you have to do to get to the next turn to try to combo off again.

Sideboarding

I genuinely believe this deck is infinitely better in Best-of-One. Most opponents keep the bulk of their hate in the sideboard, and very few decks run dedicated enchantment removal in the main, let alone hard lock pieces like High Noon. Because of that, you’ll often be free to execute your game plan without much resistance.

That said, if you truly love the deck, it’s still absolutely playable in Best-of-Three, it’s just a bit more challenging. Every card we bring in post-board comes directly out of our consistency, and with a combo deck like this, consistency is everything. It’s crucial not to over-sideboard. If you don’t know for a fact that a card will materially impact the matchup, don’t bring it in. The loss of consistency will almost always hurt you more than any narrow upside you can imagine.Sideboard Breakdown.

Unable to Scream & Fresh Start are our best tools against aggro. They buy time and can also shut down the abilities of especially problematic creatures.

Heritage Reclamation is our premier enchantment and artifact removal, with the added upside of functioning as graveyard hate. The real reason we choose it over other options is the built-in card draw, it can replace itself in a pinch, which is critical when every single draw step matters.

Detect Intrusion is ”Negate”on steroids. Being able to counter triggered abilities is huge, especially in the mirror, where it can stop Kona from cheating anything into play. It also shuts down Quantum Riddler, the various bending triggers, and even Bringer of the Last Gift combo lines. This card does everything you want.

Soul-Guide Lantern is my graveyard hate of choice. Ghost Vacuum can get overtaxed if you need to answer multiple targets, while Lantern cleanly handles the yard and can cash in for a card when you need to dig.

Sab-Sunen, Luxa Embodied is my dedicated grind-breaker. It gives us real staying power against control decks and lets us keep pace in longer games.

Cards That Don’t Make the Cut

”Accumulate was a card a lot of people had high hopes for coming out of Avatar and it has not disappointed! It is extremely powerful. But we have enough draw power. It is only better than ”Consult on turn two. Any time after Consult is just better. If you end up with three in your grave to get the draw three you have already won or lost.

”Scrabbling is a niche alternate win con. By looping Marangs and bouncing extra Omniscience and Lost in the Maze. I find it unnecessary. Our main plan of passing with a hand full of counters and removal is more than enough against most decks, even control decks. The only time I have ever wanted it was against a life gain deck that got out of control and in the post board mirror match. That is pretty niche. If you play it you should run it in the board over Sab-Sunen, Luxa Embodied. But I fear the control matchup a lot more than the others.

”Sleight is just worse than our other cards. Again, we have enough card draw. We need other effects.

Just no…

Tips and Tricks

Understand priority!!!

Be very careful when going for your combo if your opponent can represent instant-speed removal. If they aren’t actively pressuring your life total, it’s often correct to wait until you have Lost in the Maze online. You can tap Kona with a station land and immediately use Lost in the Maze to grant it hexproof before they ever get a window to remove it.

If you’re worried about enchantment removal, there’s no rush! Wait until you have a second Omniscience ready. The pressure is entirely on your opponent; they can’t act until you do.

If you’re short on a second Marang, you can bounce your own copy with Unauthorized Exit to keep the Dragonstorm chain going. It’s clunky, but it gets the job done.

Always prioritize grabbing a Cavern of Souls when you can against blue decks, it’s one of your strongest protection tools.

Finally, if you can’t quite get to Omniscience, don’t be afraid to use Kona to cheat in a Marang early just to stabilize. Bouncing a few key threats is often all the time you need to finish assembling the real combo.

Wrap-Up

This deck is great and flying under the radar. I personally play this deck a fair bit in best-of-one. It honestly might be my favorite deck in that format. It is extremely hard to hate out without a sideboard and the entire deck just flows together so seamlessly.

If you are looking for something a bit different and don’t mind the repetitive nature of the games this deck creates, then you can’t go wrong. Honestly, most players concede as soon as you play Omniscience. Heck, I have had players concede when I played Kona to be a blocker! Needless to say, this deck can be fun as long as you don’t get burned out by the deck itself.

If you enjoyed the article, consider checking out my links to my YouTube and social media for more content. I love hearing from readers and your support motivates me to continue to do what I love and bring you the best MTG content I can. Until next time Planeswalkers, Hero out!

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