Daniel Elson

Leonardo, Leader in Blue

Sneak {3}{W}{W} (You may cast this spell for {3}{W}{W} if you also return an unblocked attacker you control to hand during the declare blockers step. He enters tapped and attacking.)
When Leonardo enters, if his sneak cost was paid, creatures you control get +2/+0 until end of turn.
{1}{W}: Leonardo gains first strike until end of turn.

Donatello, Way with Machines

Flying
Whenever an artifact you control enters, put a +1/+1 counter on Donatello.

Michelangelo, Mutant BFF

Each creature you control with a counter on it can't be blocked by more than one creature.
Whenever Michelangelo enters or attacks, create a Mutagen token. (It's an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")

Raphael, Most Attitude

Menace (This creature can't be blocked except by two or more creatures.)
Alliance — Whenever another creature you control enters, you may exile the top card of your library.
Whenever Raphael attacks, until end of turn, you may play a card exiled with Raphael.

"Behold the secret technique only taught to true masters of the Foot Clan."

Splinter's Technique

Sneak {1}{B} (You may cast this spell for {1}{B} if you also return an unblocked attacker you control to hand during the declare blockers step.)
Search your library for a card, put that card into your hand, then shuffle.

"Alright, time out! Who's fighting who again?"

Raphael's Technique

Sneak {2}{R} (You may cast this spell for {2}{R} if you also return an unblocked attacker you control to hand during the declare blockers step.)
Each player may discard their hand and draw seven cards.

Krang & Shredder

Whenever Krang & Shredder enter or attack, each opponent exiles cards from the top of their library until they exile a nonland card.
Disappear — At the beginning of your end step, if a permanent left the battlefield under your control this turn, you may cast a card exiled with Krang & Shredder without paying its mana cost.

Species Specialist

As this creature enters, choose a creature type.
Whenever a creature of the chosen type dies, you may draw a card.

Piper of the Swarm

Rats you control have menace.
{1}{B}, {T}: Create a 1/1 black Rat creature token.
{2}{B}{B}, {T}, Sacrifice three Rats: Gain control of target creature.

SetSorted descending	NameCard name and typeCardsNot sorted	Rarity	Type	PriceNot sorted	FoilNot sorted
[TMT] #233	Splinter's TechniqueSplinter's TechniqueSorcery[TMT] \| #233 \| Rare \| Price: $2.29 \| Foil price: ✨$3.57	rare	Sorcery	$2.29	✨$3.57
[TMT] #199	Raphael, Most AttitudeRaphael, Most AttitudeLegendary Creature — Mutant Ninja Turtle[TMT] \| #199 \| Uncommon \| Price: $0.41 \| Foil price: ✨$0.51	uncommon	Legendary Creature — Mutant Ninja Turtle	$0.41	✨$0.51
[TMT] #237	Raphael's TechniqueRaphael's TechniqueInstant[TMT] \| #237 \| Rare \| Price: $0.50 \| Foil price: ✨$0.83	rare	Instant	$0.50	✨$0.83
[TMT] #198	Michelangelo, Mutant BFFMichelangelo, Mutant BFFLegendary Creature — Mutant Ninja Turtle[TMT] \| #198 \| Uncommon \| Price: $0.42 \| Foil price: ✨$0.65	uncommon	Legendary Creature — Mutant Ninja Turtle	$0.42	✨$0.65
[TMT] #196	Leonardo, Leader in BlueLeonardo, Leader in BlueLegendary Creature — Mutant Ninja Turtle[TMT] \| #196 \| Uncommon \| Price: $0.37 \| Foil price: ✨$0.44	uncommon	Legendary Creature — Mutant Ninja Turtle	$0.37	✨$0.44
[TMT] #245	Krang & ShredderKrang & ShredderLegendary Creature — Utrom Human Ninja[TMT] \| #245 \| Rare \| Price: $2.04 \| Foil price: ✨$2.23	rare	Legendary Creature — Utrom Human Ninja	$2.04	✨$2.23
[TMT] #197	Donatello, Way with MachinesDonatello, Way with MachinesLegendary Creature — Mutant Ninja Turtle[TMT] \| #197 \| Uncommon \| Price: $0.42 \| Foil price: ✨$0.52	uncommon	Legendary Creature — Mutant Ninja Turtle	$0.42	✨$0.52
[SLD] #2369	Species SpecialistSpecies SpecialistCreature — Human Warrior[SLD] \| #2369 \| Rare \| Price: $10.42 \| Foil price: ✨$10.73	rare	Creature — Human Warrior	$10.42	✨$10.73
[SLD] #7074	Piper of the SwarmPiper of the SwarmCreature — Human Warlock[SLD] \| #7074 \| Rare \| Price: N/A \| Foil price: ✨$3.58	rare	Creature — Human Warlock	N/A	✨$3.58