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Pinball Projectile (4RR)

Instant

Inflict 3 damage to one target creature or player, 2 damage to another creature or player, and 1 damage to a third creature or player.

Rebound

edited 23rd May '15 5:15:50 PM by Tojin

I think you may want to beef up the mana cost just a bit.

Card tax:

Revise (3UU)
Instant
Exile target instant or sorcery spell you control. Search your library for another instant or sorcery spell with the same converted mana cost, reveal it, cast it, and shuffle your library.
"Actually, I have a better idea."

Wall of Shame 1U
Enchantment - Aura
Enchant target creature you control.
Enchanted creature has Hexproof and can't attack or block.
"I'm not here and you can't see me. I'm hiding behind my Wall of Shame." - Autobot Nautica◊

Armageddon Knight (2B)

Creature - Human Warrior

2/1

Fear

When ~ ETB, you may send one black creature card with CMC 4 or less from your library to the Graveyard. That creature cannot activate its effects this turn.

Altitude Knight (2U)

Creature - Human Warrior

2/1

Flying

Once per turn, when a creature is returned to the hand or library, you may send one blue creature card with CMC 4 or less less from your library to the Graveyard. That creature cannot activate its effects this turn.

Brushfire Knight (2R)

Creature - Human Warrior

2/1

Haste

Once per turn, when a red creature you control is killed, you may send one red creature card with CMC 4 or less from your library to the Graveyard. That creature cannot activate its effects this turn.

Dawn Knight (2W)

Creature - Human Warrior

2/1

First strike

When ~ is killed, you may send one white creature card with CMC 4 or less from your library to the Graveyard. That creature cannot activate its effects this turn.

Dust Knight (2G)

Creature - Human Warrior

2/1

Morph 1G

When ~ is flipped face-up, you may send one green creature card with CMC 4 or less from your library to the Graveyard. That creature cannot activate its effects this turn.

Shore Knight (2U)

Creature - Human Warrior

2/1

~ can't be blocked.

Once per turn, when ~ is tapped, you may send one blue creature card with CMC 4 or less from your library to the Graveyard. That creature cannot activate its effects this turn.

edited 24th May '15 9:36:51 PM by Tojin

Collapsing Cavern 2RG
Enchantment
If a player has tapped 5 or more lands for mana in a single phase, Collapsing Cavern deals 3 damage to that player at the end of that phase.
"Nothing left. Nothing. It... would seem this venture has ended." - Imp, before vanishing from the frozen peaks of Tarkir.

Imp, Incensed 1WBR
Planeswalker - Imp
+2: Exile target enchantment.
-1: Destroy target artifact or creature.
-4: Destroy all creatures and artifacts. They can't be regenerated.
Loyalty: 3

edited 25th May '15 10:18:54 AM by ImperialSunlight

Two things:

1) First card looks like an enchantment.

2) Do you have a whole story in mind for Imp?

First card's missing a type.

It's a vanity card; "Imp" is his nickname.

Also, I dunno if green, of all colors, is gonna be too interested in limiting itself to four-and-below-drops. :/ Not a color that strikes me as having any desire to try to pull that off. I don't know that much, though, so whatever; I only expect it of red because I know that Eidolon of the Great Revel is monored. ...And affiliated with Xenagos, who is Gruul.
I dunno, maybe it does fit with green.

edited 25th May '15 8:45:04 AM by Knowlessman

It could work well with elves, perhaps.

Cone of Shame - W
Enchantment - Aura
Enchant creature
Enchanted creature cannot attack or block unless its controller has no other creature attacking or blocking.

Alchemist's Touch (2UU)
Enchantment
2U: Put a mutation counter on target creature.
2U: Exile target creature with a mutation counter on it. Its controller puts a 3/3 green Beast creature token onto the battlefield. Activate this ability only once each turn.
"The glowing green rocks are a key ingredient."

Jace Beleren, Overconfident Little Punk UU
Planeswalker - Jace
+1: Target player draws a card, then discards a card.
0: Put a 3/1 Blue Illusion creature token onto the battlefield with "When this creature is the target of a spell or ability, sacrifice it."
7: Gain an emblem with "Whenever you would draw a card, you may instead search your deck for a card, reveal it, put it into your hand, then shuffle your deck".
2

edited 26th May '15 12:49:13 PM by TheSpaceJawa

Starting the Magic Origins predictions already, are we?

Now I'm wishing I'd made a creature side to go with it.

Paired Bolts 2RR
Sorcery
When you cast this spell, copy it. You may not choose new targets for the copy.
Deal 2 damage to target creature.
"Meet my two best friends!"

edited 27th May '15 8:47:23 AM by ImperialSunlight

I'd recommend not making "You may not choose a new target for the copy" reminder text.

...Uh, I dunno what the upside to that is, but I'm not seeing it. :/

Plenty of stuff cares about spells you cast, but I dunno about stuff caring about how much stuff is on the stack. Copies of spells are put onto the stack directly, not cast.
I think there is stuff that says "cast a copy of X," though, so you might be able to get away with that. 'S like how some stuff lets you choose a permanent without targeting it.

edited 27th May '15 7:30:12 PM by Knowlessman

You can't cast a copy of a spell that's already on the stack. That would be like saying "Destroy target card in a graveyard" or "Target player chooses a card in his or her hand and returns it to its owner's hand".

Point taken. In that case, what in blazes is the upside to that given that Bathe in Dragonfire is a thing?

"Whenever a source you control deals damage" triggers, assuming any exist, will hit twice, I guess, and bonuses to damage will apply twice, but what else?

edited 27th May '15 7:51:21 PM by Knowlessman

Resistance to counterspells?

Ah; didn't think of that. Still seems overcosted at 2RR, though. :/ And plenty of spells can't be countered, or have split-second, or do unpreventable burn (is that last one proof against counterspells? I'm not sure), so I still have a feeling I'm missing something. Maybe something recent.

If a card says that it can't deal damage and the damage can't be prevented, that by itself will not protect against counterspells, since the "can't be prevented" clause won't have a chance to activate if the spell can't resolve.

Anyway, I think it's the combination of these elements that makes it cost more; Pyromancer's Gauntlet lets it hit twice as hard (rather than dealing 6 damage), Blaze Commando (for example) gives four tokens rather than two, and it takes two counterspells (or something like Counterflux that wipes the stack) to completely stop.

edited 27th May '15 8:42:27 PM by videogmer314

Yeah, essentially those are my reasons for it. I think it could also work as 1RU, maybe? Red seems to copy fine on its own, though, but I'm wary to make it 2R with whatever combo potential there is.

Hmm. Also, I meant to make it creature or player, but didn't. Oh, well. Just an idea, anyway.

If it was target whatsit instead of target creature, I could see 2RR being justified; or target creature at instant speed. As is, I think 3R could be gotten away with, or possibly even 1RR, considering Bathe in Dragonfire.

Also, red loves copying spells, to my knowledge; I mean, look at Howl of the Horde; that's a Mardu card. No blue there.

Instants and Sorceries at the very least can be done without any blue involvement.

Depends on the set, too, right? Like if the set has a "the stack matters" theme, or a bunch of creatures like Nivmagus Elemental, the spell copying itself might be handy. Also, it'd count as two separate instances of damage.

(If you counter the spell, it doesn't counter the copy, does it? Because that happens as you cast it, before it resolves.)

As an aside, I may have been wrong with my "don't make it reminder text" suggestion. Is it the normal rule that you can't choose new targets, with "you can choose a new target for the copy" being the text that makes it an exception? Maybe it should be reminder text. The thing that makes me question this now is Cowed by Wisdom, which is one of the few cards I've seen that doesn't use reminder text for a keyword.

edited 28th May '15 8:32:27 AM by Durazno