Teenage Mutant Ninja Turtles Eternal

Legendary Creature — Human Berserker

Double strike (This creature deals both first-strike and regular combat damage.)
{4}: Double Casey Jones's power until end of turn. Any player may activate this ability.

Casey Jones, Asphalt Hooligan

Teenage Mutant Ninja Turtles

Michelangelo, Weirdness to 11

Mutagen

Legendary Creature — Mutant Ninja Turtle

When Michelangelo enters, 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.")
If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead.

Avatar: The Last Airbender Jumpstart Front Cards

Card

Toph

Avatar: The Last Airbender Eternal

Legendary Creature — Human Warrior Ally

Vigilance
Equipment spells you cast cost {1} less to cast for each Ally you control.
At the beginning of combat on your turn, attach up to one target Equipment you control to Sokka.

Sokka, Swordmaster

Enchantment

When this enchantment enters, earthbend 3. (Target land you control becomes a 0/0 creature with haste that's still a land. Put three +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)
If one or more +1/+1 counters would be put on a permanent you control, that many plus one +1/+1 counters are put on it instead.

Solid Ground

Instant

Draw a card. Until end of turn, target creature gains trample and gets +1/+0 for each card you've drawn this turn. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

Fists of Flame

Final Fantasy

Hero

Creature — Drake

Flying
When this creature enters, create a 1/1 colorless Hero creature token.

Dragoon's Wyvern

Final Fantasy Promos

Creature — Plant

10,000 Needles — Whenever this creature attacks, it gets +9999/+0 until end of turn.

Jumbo Cactuar

Final Fantasy Commander

Legendary Creature — Dwarf Wizard

Lifelink
Trace Aether — Whenever you cast a noncreature spell, you may return target creature card with mana value equal to that spell's mana value from your graveyard to your hand. Do this only once each turn.

Krile Baldesion

Artifact — Equipment

Flash
When this Equipment enters, attach it to target creature you control. That creature gains first strike until end of turn.
Equipped creature gets +1/+0.
Equip {1}

Coral Sword

Legendary Creature — Human Artificer

Artifact creatures and Heroes you control get +1/+1 for each Artificer you control and each Artificer card in your graveyard.
A deck can have any number of cards named Cid, Timeless Artificer.
Cycling {W}{U} ({W}{U}, Discard this card: Draw a card.)