Summoning Stone/Demonic Stone

[Darkenslight]

{day}Summoning Stone  
Enchantment
 : Reveal the top card of your library.  If it's a creature card, you may cast it without paying its mana cost. Otherwise, exile it. Any player may play this ability.  If this ability is used twice in a turn, transform Summoning Stone.

/////

{night}Demonic Stone

At the beginning of your upkeep, you may sacrifice two creatures.  If you do, choose a creature on the field you don't control.  Put a Demon token that's a copy of the chosen creature onto the Battlefield, then transform Demonic Stone.

Current wording:

{day}Summoning Stone 
Enchantment
 : Reveal the top card of your library.  If it's a creature card, you may cast it without paying its mana cost. Otherwise, exile it. Any player may play this ability.  If this ability ihas already been played this turn, transform Summoning Stone.

/////

{night}Demonic Stone

At the beginning of each upkeep, that player may sacrifice two creatures.  If he or she does, that player chooses a creature on the battlefield they don't control.  That player then puts a token that's a copy of the chosen creature onto the battlefield under their control, Except that it's a Demon. Then transform Demonic Stone.

[Delha]

Interesting... I like it.

Was it your intent to cast the creature from the library? I think this sort of mechanic would typically take the form of "Exile the top card of your library. If it's a creature..."

Also, I'd reword the last part to read "...If this abiilty has been activated at least twice this turn, transform Summoning Stone". I think (not positive) it works the same either way, but the original wording made wonder if this was a triggered ability instead of a clause built into the ability's resolution. The suggested templating was chosen to match Dragon Whelp.

On Demonic Stone, if you want the token to stay a Demon, you'll need to use templating like Phyrexian Metamorph it'll just get overwritten by the copy process. Also, am I correct in assuming that you deliberately made the ability untargeted? Here's my suggestion, based largely on the templating of Phantasmal Image/Cackling Counterpart.
"At the beginning of your upkeep, you may sacrifice two creatures. If you do, put a token onto the battlefield that's a copy of any creature on the battlefield you don't control, except it's a Demon in addition to its other types."

[ELD]

Are we looking for EOT hardcast Emrakul?  This is like a reusable Show and Tell on the crack cocaine  :/

[Darkenslight]

Are we looking for EOT hardcast Emrakul?  This is like a reusable Show and Tell on the crack cocaine  :/

I'm guessing you missed the 'any player' part of Summoning Stone, so anyone can use it.

(I think the other one's Del, but I'm posting from my phone, so...)

I'll try and check the wording tomorrow on the Judge IRC channel.

[Wagner]

Are we looking for EOT hardcast Emrakul?  This is like a reusable Show and Tell on the crack cocaine  :/

I had the same reaction at first, but it's basically a cheap Call of the Wild, and that card sees no play whatsoever. Making it symmetrical doesn't seem too harsh, but making it come online a whole turn before might.

The Demonic Stone however seems all over the place. Why is it now not symmetrical, why 2 creatures? Why does it copy a creature and not just make a badass demon?

[Delha]

The Demonic Stone however seems all over the place. Why is it now not symmetrical, why 2 creatures? Why does it copy a creature and not just make a badass demon?

I overlooked the fact that it's asymmetrical on the night side. 2 creatures struck me as necessary to prevent this from being inherently infinite (sac a dude to copy your ETB guy, sac the new token to copy it again, repeat ad infinitum).

I figured the demon aspect was something along the lines of Evil Twin. Agreed that it's a bit off flavor though. It should probably either make a straight up demon, or be renamed and make a shapeshifter token.

[Wagner]

The Demonic Stone however seems all over the place. Why is it now not symmetrical, why 2 creatures? Why does it copy a creature and not just make a badass demon?

I overlooked the fact that it's asymmetrical on the night side. 2 creatures struck me as necessary to prevent this from being inherently infinite (sac a dude to copy your ETB guy, sac the new token to copy it again, repeat ad infinitum).

I figured the demon aspect was something along the lines of Evil Twin. Agreed that it's a bit off flavor though. It should probably either make a straight up demon, or be renamed and make a shapeshifter token.

as it's worded, it triggers once at the beginning of the upkeep, there can be no infinite shenanigans.

[Darkenslight]

The Demonic Stone however seems all over the place. Why is it now not symmetrical, why 2 creatures? Why does it copy a creature and not just make a badass demon?

I overlooked the fact that it's asymmetrical on the night side. 2 creatures struck me as necessary to prevent this from being inherently infinite (sac a dude to copy your ETB guy, sac the new token to copy it again, repeat ad infinitum).

I figured the demon aspect was something along the lines of Evil Twin. Agreed that it's a bit off flavor though. It should probably either make a straight up demon, or be renamed and make a shapeshifter token.

as it's worded, it triggers once at the beginning of the upkeep, there can be no infinite shenanigans.

I'm still not sure of the wording on Demonic Stone: that said here's my rationale for it, and it's twofold:

1) It offers a tension for your opponent: do they want to try and get a creature, and give you the possibility of Cloning one of their dudes, or do they leave it for now?
2) The summoning of Demons often requires a sacrifice - a single sacrifice seemed okay in theory, but it wo9uld open the card up to infinite loops.

That still may be changed to each player, withthe following eording:

At the beginning of each upkeep, that player may sacrifice two creatures.  If he or she does, they choose a creature on the battlefield he or she doesn't control.  That player puts a Demon token that's a copy of the chosen creature onto the Battlefield, then transform Demonic Stone.

Let me double-check the rules on Transform to see if that can work.

ETA: updated wording on the design: Demonic Strone looks a lot wordy.