Cosmotronic Wave


Format Legality
Pre-release Legal
Tiny Leaders Legal
Magic Duels Legal
Canadian Highlander Legal
Vintage Legal
Modern Legal
Standard Legal
Pauper EDH Legal
Leviathan Legal
Legacy Legal
Brawl Legal
1v1 Commander Legal
Duel Commander Legal
Casual Legal
Unformat Legal
Pauper Legal
Commander / EDH Legal

Printings View all

Set Rarity
Guilds of Ravnica (GRN) Common

Combos Browse all

Cosmotronic Wave


Cosmotronic Wave deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn.

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Cosmotronic Wave Discussion

RzrBladeMontage on Burning Goblin Tits (POWER HOUSE!)

1 month ago

I just made this deck exactly how you have it, minus the sideboard. I'm super excited to play it in the next couple days, I love really fast decks and this looks like it's gonna be my cup of tea. In case you're interested, here's what I put in my sideboard.

4x Sentinel Totem, 2x Inescapable Blaze, 2x Warlord's Fury, 2x Crash Through, 2x Cosmotronic Wave, 2x Fight with Fire, 1x Experimental Frenzy

I put so many Sentinel Totem's in my side, simply because a TON of people in my area play Golgari, and it's a super easy, and cheap, counter to their deck; plus it allows you to scry, which is always nice. I chose Inescapable Blaze over Banefire because it's an instant, that can't be countered, versus a sorcery; it's always nice to do that kind of thing on your opponents end step. Warlord's Fury and Crash Through both for their combat advantage abilities, plus you get to draw a card. Cosmotronic Wave helps with 1/1 tokens, and makes it so everything else can't block. Fight with Fire could be a game ender, or board wipe. Experimental Frenzy could be insane with all the low costs in this deck.

So that's what I put in mine, and why. Will report back on my games in a few days, thanks for the deck build!

BMHKain on Sorry this isn't CMC <1 ...

1 month ago

@enpc: Well, my Commander in question in this case is now Kess, Dissident Mage, so I'll thake the following into mind:

Beacon Bolt

Crackling Drake

Expansion / Explosion

Invert / Invent

Enhanced Surveillance

Mission Briefing

Omnispell Adept

Connive / Concoct

Discovery / Dispersal

Mnemonic Betrayal

Thought Erasure

Thief of Sanity

Vicious Rumors

Doom Whisperer

Cosmotronic Wave

Electrostatic Field

Experimental Frenzy

Dream Eater

Artful Takedown

(Basically anything w/ Surveil *...)

But I also need a way to protect my yard, now I use Kess. Isochron Scepter/Elite Arcanist. But how does a Kess Storm deck work? I have to cast things from my yard; & I'd like to keep at least some of my best stuff (CMC 6 >=.); after converting from Jeleva; all while having Instants/Sorceries of high cost. Any ideas as to How I can do that, enpc?

mikexbustillos on BEAMSPLIT THIS SCRUBz! :@

2 months ago

I tested a couple games just now. There are a couple problems that I see.

1) Your entire gameplan is based on Beamsplitter living. Unless you can always have a Dive Down in hand, and always leave mana up to be able to play it, this game plan is super vulnerable to removal. And almost every deck plays removal.

2) There are only 6 actual win conditions, 4 Beamsplitter and 2 Electromancer, and they all require a lot of other things to line up to be good. If you don't draw any of these, your hand is essentially dead.

3) Gravitic Punch doesn't combo with Beamsplitter Mage because it also targets a player, so I'm not sure this is a great card in this deck. Something like Cosmotronic Wave might work better at getting a bunch of buffed attackers through.

4) The deck lacks resilience in the long game. After turn 5, I was out of cards and had no way to refill my hand. Maybe consider some kind of advantage engine--Firemind's Research or Experimental Frenzy to give you a way to keep going when your hand is empty.


I think that you might want to consider A) diversifying your threats, and B) decentralizing your gameplan.

Maybe run some Runaway Steam-Kin or Wee Dragonauts or something as well--they take buffs well and can win games even if you don't draw your Beamsplitter. Plus if you ever get Beamsplitter + Quasiduplicate to happen, you can have some good copying targets. I mean, I'm all for making a bunch of Beamsplitters, but at some point you do want something you can kill people with. (Also, be advised that the Beamsplitter ability triggers on cast; if you had 3 Beamsplitters, for instance, and cast a Sure Strike, you would be able to buff 2, but not keep copying it to all of them, because the copies are not technically "cast." Therefore, having multiple Beamsplitters is not necessarily advantageous.)

Maybe run some more removal spells? A set of Lightning Strike seems like a good addition, to help you get rid of blockers. Maybe a few Fight with Fire in case you find yourself facing a Lyra Dawnbringer.

Just a couple suggestions. The Beamsplitter combo is sweet! I'd love to playtest it again after some updates.

Good luck!

Argy on Sarkhan's Dragon Den

2 months ago

Thanks Kizmetto.

Yes, this is the deck that I'm planning to take to WNM.

I have a lot of the cards but I need to get off my arse and build StuBi's Fermentoring deck before we can play.

I did have a BIG think about Cosmotronic Wave.

Its 4CMC plus the fact that it would be very situational (to get the most out of it my Opponents would need a few Creatures on the field - which they usually don't by the time I've finished killing all their stuff - and I'd have to wait until I could hit for lethal ... then just have Settle the Wreckage cast against me) made it less appealing.

With the amount of flying Creatures and burn spells in this deck usually the last points of damage are fairly easy to achieve.

Certainly not a bad idea, though.

Kizmetto on Sarkhan's Dragon Den

2 months ago

I keep coming back to this list. will you build it in paper? im just very excited to learn how it performs!

what do you think of Cosmotronic Wave in sideboard for alpha swings and alpha striking? But i do like your reasoning for shake the ground and chainwhirler.

Draw well!

popum on Jeskai Auras

2 months ago

I think if you are going down on white cards probably lean into blue a bit. This might even out the manna base till you get Hallowed Fountain. So four of Mist-Cloaked Herald. Then you could also include Siren Stormtamer as a way to doge removal too.

What do you think about boarding Negate to deal with Teferi, Hero of Dominaria and Settle the Wreckage?

Not sure it this works but Cosmotronic Wave could be a sweet finisher at that 4 cmc spot.

Shutup611 on Boros Path of Mettle

2 months ago

It might not be a bad idea to consider Cosmotronic Wave, from Guilds of Ravnica, The card could help get around any blockers that a Shock or Lightning Bolt won't handle, plus if you go up against a token deck this would help remove any 1/1 tokens.

Kizmetto on Repeating Raptors

2 months ago

ok ive done this deck before but definately drop Grazing Whiptail to at least sideboard, if not cut completely and run 4 Circuitous Route. drop Polyraptor to a two of, since you are gonna tutor it up anyway with the forerunner.

with no indestructible, best you going to get is 8 raptors per 1 forerunner. adding in assure/assemble gives you an indestructive outlet to target your forerunner to make many many dinos. I alsp reccomend filling those two empty spots with Regisaur Alpha so those polyraptors can swing asap! do be careful of Settle the Wreckage though.

over Shake the Foundations how about 2 Cosmotronic Wave? clears tokens and allows alpha striking! the other 2 slots could be 2 Drover of the Mighty and if you dropped 1 forerunner and 1 otepec huntmaster to then complete the set.

i think this will allpw you to ramp well into polyraptor this way.

hope the comments help! here is my polyraptor combo deck for reference

Polyraptor Squared

Standard* Kizmetto


you could also look into a Fog based strat.

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