Canata Katana

Eater of Virtue

Whenever equipped creature dies, exile it.
Equipped creature gets +2/+0. 
As long as a card exiled with Eater of Virtue has flying, equipped creature has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, and vigilance.
Equip {1}

Whenever equipped creature dies, exile it.
Equipped creature gets +2/+0.
As long as a card exiled with Eater of Virtue has flying, equipped creature has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, and vigilance.
Equip {1}

Nym's scholars defended their tiny nation with spell-weaving faeries.

Snapcaster Mage

Flash
When this creature enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Zidane, Tantalus Thief // Zidane, Tantalus Thief

Zidane, Tantalus Thief

When Zidane enters, gain control of target creature an opponent controls until end of turn. Untap it. It gains lifelink and haste until end of turn.
Whenever an opponent gains control of a permanent from you, you create a Treasure token.

Sutina, Speaker of the Tajuru

When Sutina enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever Sutina attacks, you may return a land you control to its owner's hand. When you do, put a +1/+1 counter on target creature.

Ivora, Insatiable Heir

Trample
When Ivora enters and whenever it deals combat damage to a player, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")
Whenever you discard a card, put a +1/+1 counter on Ivora.

Spark Double

You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Sneak Attack

{R}: You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step.

"Let me give you a hand. He won't be needing it; he's left-handed. Also dead."

Stitcher's Supplier

When this creature enters or dies, mill three cards. (Put the top three cards of your library into your graveyard.)

Getting caught was bad enough, but being rolled to the detention center was by far the worst part.

Arrest

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

SetSorted descending	NameCard name and typeCardsNot sorted	Rarity	Type	PriceNot sorted	FoilNot sorted
[FIC] #469	Snapcaster MageSnapcaster MageCreature — Human Wizard[FIC] \| #469 \| Mythic \| Price: N/A \| Foil price: ✨$166.82	mythic	Creature — Human Wizard	N/A	✨$166.82
[AFIN] #49	Zidane, Tantalus Thief // Zidane, Tantalus ThiefZidane, Tantalus Thief // Zidane, Tantalus ThiefCard[AFIN] \| #49 \| Common \| Price: --- \| Foil price: ✨---	common	Card	---	✨---
[FIN] #405	Zidane, Tantalus ThiefZidane, Tantalus ThiefLegendary Creature — Human Mutant Scout[FIN] \| #405 \| Uncommon \| Price: $0.33 \| Foil price: ✨$0.43	uncommon	Legendary Creature — Human Mutant Scout	$0.33	✨$0.43
[J25] #56	Sutina, Speaker of the TajuruSutina, Speaker of the TajuruLegendary Creature — Elf Scout[J25] \| #56 \| Uncommon \| Price: $0.37 \| Foil price: ✨N/A	uncommon	Legendary Creature — Elf Scout	$0.37	✨N/A
[J25] #50	Ivora, Insatiable HeirIvora, Insatiable HeirLegendary Creature — Vampire Warrior[J25] \| #50 \| Uncommon \| Price: $0.60 \| Foil price: ✨N/A	uncommon	Legendary Creature — Vampire Warrior	$0.60	✨N/A
[RVR] #421	Spark DoubleSpark DoubleCreature — Illusion[RVR] \| #421 \| Rare \| Price: $19.62 \| Foil price: ✨$41.16	rare	Creature — Illusion	$19.62	✨$41.16
[WOT] #79	Sneak AttackSneak AttackEnchantment[WOT] \| #79 \| Mythic \| Price: $13.34 \| Foil price: ✨$29.76	mythic	Enchantment	$13.34	✨$29.76
[J22] #73	Stitcher's SupplierStitcher's SupplierCreature — Zombie[J22] \| #73 \| Uncommon \| Price: $2.03 \| Foil price: ✨N/A	uncommon	Creature — Zombie	$2.03	✨N/A
[J22] #52	ArrestArrestEnchantment — Aura[J22] \| #52 \| Uncommon \| Price: $0.14 \| Foil price: ✨N/A	uncommon	Enchantment — Aura	$0.14	✨N/A
[NEO] #401	Eater of VirtueEater of VirtueLegendary Artifact — Equipment[NEO] \| #401 \| Rare \| Price: $0.60 \| Foil price: ✨$1.03	rare	Legendary Artifact — Equipment	$0.60	✨$1.03