Jason Kiantoro

Krile Baldesion

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.

Michelangelo, Weirdness to 11

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.

"Two minutes for slashing, two minutes for hooking, and my personal favorite, two minutes for high-sticking."

Casey Jones, Asphalt Hooligan

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.

Toph

Sokka mastered the sword like his friends mastered the elements.

Sokka, Swordmaster

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.

Zuko's rage fueled his firebending, making him one of the fiercest in the Fire Nation.

Fists of Flame

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.)

Some Cactuars live long lives and grow huge. This Jumbo Cactuar is one of them.

Jumbo Cactuar

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

"I heard that to become a dragoon, you had to make a pact with a living wyvern. However, thanks to the dragonslayers, there aren't that many dragons left."
—Ceraulian, San d'Oria citizen

Dragoon's Wyvern

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

Coral Sword

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}

Cid, Timeless 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.)