While my Photoshop skills hover between none at all and occasional clone-stamping, I've still decided to attempt sharing some of my Magic: the Gathering, card designs, including some that I submitted back in the "You Make the Card" days (this really needs to come back, for the record).
The format is Card Name//Casting Cost//Type//Text Box//P/T or Loyalty, if applicable.
Vessel of Drought//3//Artifact//Non-colorless mana cannot be used to pay the colorless costs of spells or abilities.
Carragon, the Wandering Sage//XG//Planeswalker-Carragon//~this~ enters the battlefield with X loyalty. -1: Search your library for a land and put it on the battlefield tapped. -3: Search your library for a creature, reveal it, then put it onto the battlefield tapped. -5: Exile the top half of your library rounded up. All permanents exiled this way enter the battlefield tapped.
Feral Devourer//B//Creature-Horror//If ~this~ would be put into your graveyard from anywhere, it enters the battlefield instead. When ~this~ enters the battlefield, if you did not play it from your hand, you lose the game.//7/7
Double-faced spells are formatted the same, the "night" side of the card follows //////
Fizzle//UU//Instant//When you play ~this~, if it is the first spell you've played this turn, transform it. Counter target spell.//////
Frazzle//~//Instant//Counter target spell unless it's controller pays 2.
Burn//R//Instant//When you play ~this~, if it is the first spell you've played this turn, transform it. ~this~ deals 4 damage to target creature or player.//////
Blister//~//Instant//~this~ deals 2 damage to target creature or player.
Banish//BB//Instant//When you play ~this~, if it is the first spell you've played this turn, transform it. Exile target planeswalker, creature, or land.//////
Bury//~//Instant//Destroy target non-black creature.
Restore//2G//Instant//When you play ~this~, if it is the first spell you've played this turn, transform it. Return target card from your graveyard to your hand. Exile ~this~.//////
Renew//~//Instant//Untap all permanents you control. Exile ~this~.
Pacify//W//Instant//When you play ~this~, if it is the first spell you've played this turn, transform it. Target creature cannot attack or block. (The creature remains pacified until it leaves the battlefield or the game ends)./////
Pardon//Instant//Untap target attacking creature and remove it from combat.
And some unrealistic designs that seem mildly entertaining.
Impenetrable Battlements//3WW//Creature-Wall//Defender. 0: ~this~ gets +0/+1 until end of turn. Miracle: WW.//0/4
Fissure Behemoth//4RR//Creature-Beast//Haste. Trample. When ~this~ enters the battlefield, destroy target land. Miracle: RRR//5/1
Slumbering Wurm//5GG//Creature-Wurm//Trample. 3GG: Regenerate ~this~. ~this~ gets +6/+6 until end of turn. Miracle: GGGGG.//8/8
Banworthy Sprite//2U//Creature--Fairie//Flash. Flying. Miracle: U.//3/2
Gravetender Revenant//1BB//Creature--Spirit//Flying. When ~this~ enters the battlefield, if it was played with it's Miracle cost, target player sacrifices a creature and you may return a creature from your graveyard to the battlefield. Miracle: 4BB.//3/2