Complete Guide to Teenage Mutant Ninja Turtles’ Source Material Bonus Sheet

Herko Kerghans February 25, 2026 Collecting, MTG Cards

Teleportation Circle | Illustration by Michael Dooney

Teenage Mutant Ninja Turtles comes with a small bonus sheet of reprints called Source Material. These are familiar Magic staples dressed up with TMNT art pulled from across the franchise, plus a special frame (and in a few cases, alternate names for extra flavor).

Let’s break down what Source Material cards are, where they appear in Play Boosters and Collector Boosters, and how their format legality works.

Let's hop into it!

Table of Contents show

What Are the Source Material Cards in Teenage Mutant Ninja Turtles?

All Will Be One | Illustration by Esau Escorza, Isaac Escorza & Luis Antonio Delgado

According to WotC's official Collecting Teenage Mutant Ninja Turtles article, Source Material cards are a bonus sheet with reprints of Magic staples with artwork from throughout the Teenage Mutant Ninja Turtles franchise.

A bonus sheet is a mini-collection of cards that aren’t part of the main set, but that you can find in Collector or Play Boosters. Some bonus sheets have a connecting thematic thread, like all the Enchanting Tales from Wilds of Eldraine being enchantments, or all the Breaking News cards from Outlaws of Thunder Junction being crime spells. But that's not the case here. There's a bit of everything: enchantments, artifact creatures, instants, sorceries, lands, and equipment.

There's a total of 20 Source Material cards. They’re all borderless, they have their own set code (PZA), and even their own set symbol.

You can find one Source Material card in each TMT Collector Booster, with a 25% chance to pull the traditional foil treatment. TMT Play Boosters have roughly a 4% chance of having a Source Material card (in which case it replaces a common card), and it's always non-foil.

How Many Bonus Sheet Cards Are in TMNT?

Source Material (PZA) is the only bonus sheet in TMT. It has 20 cards.

List of Source Material Cards in Teenage Mutant Ninja Turtles

Are TMNT Bonus Sheet Cards in Play Boosters? The TMT Draft Format?

Yes! You can find PZA cards in TMT Play Boosters.

Their drop rate is 1 Source Material card in every 28 Play Boosters (replacing a common). And even though the PZA card you open or get passed may not be Standard legal (like Brainstorm or Underworld Breach), you can still draft it.

With 1:28 odds per Play Booster, and each 8-person draft opening 24 boosters, it means that on average there will be about 0.86 bonus sheet cards per pod. Which in turn means that your pod's chances of finding at least one PZA Source Material card in your Teenage Mutant Ninja Turtles draft is about 58%.

Where Can You Open Source Material Ninja Turtles Cards?

Collector Boosters have a dedicated slot for Source Material cards; they may come in non-foil or traditional foil.

You also have a chance to find them in Play Boosters (your odds are around 4%, replacing a common). In Play Boosters, Source Material cards are always non-foil.

How Many Are in Each Pack?

According to WotC, there's exactly one source card in each Collector Booster, either non-foil (75% of the time) or traditional foil (25% of the time).

In Play Boosters, the exact rate is 1 out of 28 boosters (a bit better than 4%).

Will TMNT’s Bonus Sheet Cards be on Arena?

Yep! You'll find TMT Source Material cards in MTG Arena packs, both within those you buy from the stores and those you draft with (which makes a ton of sense, else paper drafts and MTGA drafts would be different).

Are All TMNT Source Material Cards Mythic Rares?

Yes, all the Source Material cards are printed as mythics rares in the PZA bonus sheet.

If you play Pauper, that doesn't change their legality. You can still use the Source Material Brainstorm, for example, since it has been printed at common elsewhere.

Are TMNT Bonus Sheet Cards Standard Legal?

A card’s inclusion in the Source Material bonus sheet doesn't change its legality: It’s legal in whichever format it was already legal in, and still unplayable in all other Constructed formats.

For example, Doubling Season is currently legal in Standard. Therefore, any printing of Doubling Season, including the PZA Source Material version is Standard-legal too.

The same happens with Undercity Sewers: It's already playable in Standard, so your PZA Source Material copy can go into your Standard deck.

But Brainstorm isn’t currently playable in Standard (or Pioneer/Modern, for that matter) so its PZA version is unplayable in any of those formats, too.

Or, as another example, Underworld Breach was banned in Pioneer, Modern, and Legacy, so of course it being part of Teenage Mutant Ninja Turtles‘ bonus sheet doesn't suddenly unban it! Therefore, the PZA Source Material version is playable in the only two MTG formats where Underworld Breach is already legal: Vintage and Commander.

You can still draft all the Source Material cards, though, or add them to your Sealed deck. If you find a Brainstorm, Underworld Breach, or All Will Be One in your Limited pool, you can play them even though you can't put them in a Standard deck.

The Most Valuable Source Material Cards from Teenage Mutant Ninja Turtles

These prices were taken from TCGplayer on February, Sunday 22nd, and are subject to drastic changes over the next few days and weeks.

Doubling Season – $71.49

It's hard to find a more iconic card than Doubling Season in casual Commander decks: Its ability to double tokens and double counters of every flavor will never, ever get old (although some would argue it's also one of the most overplayed cards in the format!). It's been reprinted to death, but even the Foundations reprint doesn't go below $30. And being a Foundations card means Doubling Season will be Standard-legal until at least 2029.

Splinter of the Shadows (aka Ashcoat of the Shadow Swarm) – $65.00

Looks like good ol' Splinter grew tired of wrangling turtles and decided he'd rather be a rat commander! Ashcoat of the Shadow Swarm (called Splinter of the Shadows in PZA) turns your board of rats into lethal combat math by scaling its pump off how many you’ve got, which is exactly what flood-the-board typal decks want.

All in all, Ashcoat of the Shadow Swarm is arguably among of the weakest cards in the TMT Source Material bonus sheet; it only sees play in casual Commander, and it's certainly not among the most popular commanders.

But it clearly is popular enough to be in fairly high demand, and until PZA it had never been reprinted since the Jumpstart 2022 original, a version that costs north of $60 bucks.

Trouble in Pairs – $57

Trouble in Pairs is what happens when a white card draw spell chooses violence. It rewards you when opponents do normal Commander things too much (casting multiple spells, attacking with multiple creatures, drawing multiple cards), but then it also shuts down extra turns, while still functioning as a nasty, high-floor draw engine.

Commander players have been ardently asking for a reprint since Murders at Karlov Manor (with the original version costing about $30 nowadays), and Teenage Mutant Ninja Turtles has finally been happy to oblige.

Undercity Sewers – 51.49

The surveil lands are another of Murders at Karlov Manor‘s biggest hits and, like Trouble in Pairs, had until now not been reprinted.

We're not getting the whole cycle in the PZA bonus sheet (sadly!), but Undercity Sewers is making a comeback. The original MKM printing costs around $20 for the regular version, so I doubt the TMNT Source Material printing will cost more than twice that… but as far as presale prices go, current copies are listed at over $50.

Donnie's Bō, aka Shadowspear – $49.51

Shadowspear, renamed Donnie's Bō in the PZA Source Material, is one of the best equipment in Magic thanks to how versatile it is. Trample is great for going on the attack; lifelink is excellent when you're behind; but what makes Shadowspear stand out is its activated ability that strips hexproof and indestructible from all permanents your opponents control.

And it's not just a Commander staple: Shadowspear sees competitive play in Modern and Legacy, so it's always in high demand. The cheapest regular version is the Theros Beyond Death original at around $40, so Donnie's Bō listed at close to $50 doesn't look unreasonable.

Shadowspear is one of the strongest Source Material cards to draft, so you should be pretty happy if you're lucky enough to find it in a Play Booster. Lifelink is one of the most powerful abilities in Limited, and a colorless equipment fits any deck, so if you draft it you've got yourself a great card!

Wrap Up

Trouble in Pairs | Illustration by Kevin Eastman & Peter Laird

And that's the gist of the Source Material cards from Teenage Mutant Ninja Turtles! A bonus sheet of 20 Magic staples with TMNT artwork that you’ll always find in TMT Collector Boosters, and sometimes in TMT Play Boosters.

Their format legality doesn’t change (if a PZA card wasn’t already playable in an MTG format, it's still not legal), but you can draft them.

I hope you've enjoyed this deep dive into the borderless Source Material (PZA) cards from Magic's Teenage Mutant Ninja Turtles crossover, and if you have comments or questions please drop something below, or stop by the Draftsim Discord for a chat.

And good luck out there!

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Herko Kerghans

Herko has been battling online since EVE was a thing, fell in love with digital CCGs nearly a decade ago, and got his first taste of MTG during Arena's Open Beta. He loves Limited formats, crunching data, and (usually silly) puns and wordplay.