Started designing these Magic cards for the 16 main characters. I'm such a nerd... hehehehehe.
Some of these cards don't have nearly enough abilities to be legendary, so if you have any good ideas (or costing suggestions), share them!
HUMANS:
John Egbert, Heir of Breath
3W
Legendary Creature - Human Cleric
Flying
1W: Tap target creature.
3W, Tap: Tap all creatures target player controls.
4/4
Rose Lalonde, Seer of Light
?U
Legendary Creature - Human Wizard
Flying
Whenever an opponent draws a card, you may look at that player's hand.
2U, Tap: Look at the top card of your library. If it is a nonland card, put it into your hand.
?/?
Dave Strider, Knight of Time
?R
Legendary Creature - Human Knight
Haste, Double Strike
OR: Copy target instant or sorcery spell you control. You may choose new targets for the copy.
OORR: Put a token that's a copy of Dave onto the battlefield. Exile it at the beginning of the next end step.
?/?
Jade Harley, Witch of Space
?G
Legendary Creature - Human Hound Shaman
On your turn, you may play any number of land cards from your hand.
Lands you control are indestructible.
Creatures you control get +0/+2.
?/?
TROLLS:
Aradia Megido, Maid of Time
Flying
12: Target player takes an extra turn after this one.
Legendary Creature - Troll Advisor
?/?
Tavros Nitram, Page of Breath
?WR
Legendary Creature - Troll Soldier
Haste
W, Tap: Remove target attacking or blocking creature from combat.
?/?
Sollux Captor, Mage of Doom
2UR
Legendary Creature - Troll Wizard
1U, Sacrifice Sollux: Counter target spell.
1R, Sacrifice Sollux: Sollux deals 2 damage to target creature or player.
Whenever you play a red or blue instant or sorcery, return Sollux from your graveyard to your hand.
4/2
Karkat Vantas, Knight of Blood
3B
Legendary Creature - Troll Knight
Other Troll creatures you control get +1/+1.
B, Tap: Destroy target creature with power 1 or less.
Spells and abilities your opponents control cannot cause Karkat to tap.
5/4
Nepeta Leijon, Rogue of Heart
?RG
Legendary Creature - Troll Rogue
First Strike
R: Target creature gets -1/-0 until end of turn.
G, Tap: Nepeta fights target creature.
?/?
Kanaya Maryam, Sylph of Space
?BG
Legendary Creature - Troll Vampire
B: Regenerate Kanaya.
Whenever a creature dealt damage this turn by Kanaya dies put a +1/+1 counter on Kanaya for each of that creature's colors.
?/?
Terezi Pyrope, Seer of Mind
?WU
Legendary Creature - Troll Cleric
1: Flip a coin. If it comes up heads, Terezi gets +1/-1 until end of turn. If it comes up tails, Terezi gets +0/+2 until end of turn.
4/4
Vriska Serket, Thief of Light
?UB
Legendary Creature - Troll Rogue
Flying, Lifelink
1UB: Roll an 8-sided die. On an even number, you draw a card. On an odd number, target opponent discards a card.
?/?
Equius Zahaak, Heir of Void
?UG
Legendary Creature - Troll Warrior
Double Strike
OOOO: Put a 1/1 colorless Construct artifact creature token onto the battlefield.
g/u, Sacrifice a Construct: Equius gets +2/+0 until end of turn.
?/?
Gamzee Makara, Bard of Rage
?BR
Legendary Creature - Troll Berserker
Defender
b/r, Discard a card: Gamzee loses Defender and gains Double Strike until end of turn.
Whenever you sacrifice a creature, put a +1/+1 counter on Gamzee.
?/?
Eridan Ampora, Prince of Hope
?WB
Legendary Creature - Troll Wizard
OOWB, Tap: Destroy target creature an opponent controls. That player puts a 4/4 white Angel creature token with Flying into play.
?/?
Feferi Peixes, Witch of Life
1WG
Legendary Creature - Troll Druid
Other creatures you control get +1/+1.
Whenever a creature you control dies, draw a card.
3/3
we already had a homestuck themed magic card thread. i think it was called magic the sburbening or something. we even made a whole set. you should check it out. ah here it is