Swan Song

[Wobbles]

Swan Song
Instant
If you have no blue or black cards in hand, you may reveal your hand rather than pay Swan Song’s mana cost.

When target spell you don't control resolves, end the turn.
I'll give you the last word.

This card provides even non-blue decks a responce to almost every major type 1 end game, as well as being good for counterwars.  It'll certainly influence every format, but not in an utterly game destroying way, but rather by providing more interaction and longer games. The green base cost/color is simply because it will act like a fog in most non-t1 formats, and feels somewhat like Seedtime. Green has had a fair share of free spells in the past, and having a card this good pump Dryad seems silly.

Comments are appreciated.

[Ephraim]

The alternate casting cost on this one bothers me.  It's so easy to do that it doesn't really seem to matter that this has a casting cost of GG.  I think that I would rather that this not have an alternate casting cost and make it a cantrip instead.  It would be less playable, but I think that it would maintain the integrity of the card better than your proposed wording.

[Wobbles]

I agree that the original ACC of discard a non-green, non-land card is probably not "green" enough. That said, I think this card is more interesting as a free spell, and that it should be easy to cast. The pre-combat main phase is often the right time to play spells, simply because it makes combat decisions easier (especially true of matches green/X with combat tricks), so discouraging that is really valuable for green. Also, I think that ACC made it too easy for a blue/black deck to trump a counterspell baiting stratigy, which can be the only tool some decks have against heavy control.

[Ephraim]

I think that there is a substantial precedent that alternate mana costs can't let you avoid playing with the correct colour.  Your revision still allows red and/or white decks to play with this card with neither other green cards nor sources of green mana in the deck.  That shouldn't be able to happen.

I honestly like this idea, but having thought it through a little bit more thoroughly, I don't know if this idea is actually feasible.  Time Stop has a converted mana cost of 6.  This only costs 2 and you seem eager to shoehorn it in as a free spell.  There are a lot of problems with this, though.  For example, if you cast it in response to somebody playing a combat trick, it acts as a Fog and then doesn't give the opponent an opportunity to do anything during second main phase.  That's better than Time Walk, since you got the free turn and your opponent wasted a combat trick.  You might argue that in Vintage, that's not a likely scenario, but it would happen all the time in Standard.  That just doesn't seem right to me.

[Titanium Dragon]

I think this card isn't really green at all; it is blue, red (possible), or maybe white (though that's kind of stretching it). And I don't think it is remotely fair for free; at CC, it is fine I think (as it ensures they've resolved at least one spell during their turn). It seems like it rather hoses aggro though, especially green aggro which typically plays pump before damage is dealt, and helps control decks that sit back and do nothing during their own turn, thus making them invulnerable to it and letting them use it freely.

[Matt]

I actually think the broken part of this is the cost. The hardcast cost should be like five mana.

[Venven]

I actually think the broken part of this is the cost. The hardcast cost should be like five mana.

Definitely, and the ACC needs to be brought closer to the realistic mana cost. Playing a deck without black and blue and revealing your hand is not equivalent to, say, 3GG. This card should be predictable to an extent, because it would hurt to walk into this, especially against an aggro deck. So, for example, the casting cost of GWU, or some other odd mana cost that allows the opponent to infer that you're holding ~this~, would bring it slightly closer to fair. If you want to stick on an ACC, it should be at least -1 CA, probably -2 CA, something like the double pitch cards from Coldsnap that the opponent can use to infer your plans as well. That's double-edged in that it allows you to bluff, but the tempo advantage is there with the ACC that makes it worth bluffing. Having to hold back mana, on the other hand, is hard to justify for an aggro deck. You're walking a few very thin lines with this card.