A few complicated ideas, for fun.

[Essence]

Here are a few ideas that, like Zanz's proposed Mummy-->Sarcophagus (Scarab Generator) idea, require certain very specific interactions to 'activate', but become quite strong when activated.


Hypnotic Lemure
5 Darkness -- Creature
1/1 (Upgraded - 3/1).
3 Light: Hypnotism: Until the beginning of your next turn, whenever Hypnotic Lemure would deal damage or be dealt damage by a non-Death creature, that creature leaves it's owner's control and joins the Lemure's controller's side (if space allows.  If not, it remains where it was placed.)  This effect targets the affected creature (so Immortal creatures are not affected). 


This requires Gravity Pull to be useful, but with Gravity Pull, it can potentially steal every creature on your opponent's team (Grav Pull the Lemure, and every creature on the opponent's team "would" deal damage to it, but will join your team before they get there.)  Requiring 3 elements to pull off (and only one can be acquired with a single Supernova) -- or 4 if you want to Quint it (which you do, because it's incredibly vulnerable) -- it's not an easy trick to pull off, but it's effect is a total game-swinger if you can pull it off.



Luscious Nymph
3 Life -- Creature
3/2 (Upgraded: 5/2)
When Luscious Nymph is in play, no other creature may be the target of the Devour ability.
If Luscious Nymph is Devoured, the creature that Devoured her gains +0/+3 in addition to the normal Devour effect, and joins the team the Luscious Nymph was on.  This effect occurs even if the Devouring creature is Immmortal at the time.


Pretty straightforward: it's called "how to deal with Quintessenced Otyguhs, courtesy of Life Element." 



Alchemiac Conjuration
6 Aether -- Creature
0/1 (Upgrade: 0/4)
Immortal.  Whenever either player plays an Alchemy card, Alchemaic Conjuration gains +1/+0 and gains the ability of the relevant Nymph until the end of it's controller's next turn. 


This will just get fun with all of the new Alchemy cards going around, but if your opponent doesn't have any, you'd better be packing some useful ones your self. 


And finally:

Shrieking Falcon
2 Air -- Creature
3/2 (Upgraded: 4/4)
If Shrieking Falcon is duplicated by any means, immediately after being duplicated, it grows into a Shrieking Flock.
2 Air: Dive

(Keep in mind that Chaos Seed can randomly cast PU, so it's important not to specify TU in the effect discription.)


Shrieking Flock
6 Air -- Creature
6/5 (Upgraded: 8/5)
If Shrieking Flock is killed by damage, it spawns three Shrieking Falcons.
3 Air: Dive

(This leaves it vulnerable to a variety of instant-death effects such as Devour and Paradox, as well as the 'not-technically-damage' Plague/Aflatoxin, but makes it an easy target for Gravity Pull, Eagle's Eye, and the various damaging spells.)



The Sarcophagus idea is an excellent one, and the game deserves a few more of those one-off unique interactions that can spawn radical deck ideas.  Let's do it!

[Lanidrak]

Very nice ideas. I like that you've put more than just the card idea down. It puts the cards into a context which lets us imagine them more clearly in the game, actually be played.

Hypnotic Lemure is an interesting concept. It is extremely powerful in that it has the ability to, as you say, capture every creature the enemy controls (provided you have Gravity Pull). But, momentum would effectively stop this being useful - since Gravity Pull is considered a shield effect. Also, would immortal creatures be converted?

I would rather see this as a much less complicated card (requiring less combinations etc)... Sure, it is a very nice concept and I like it a lot - you've sort of restricted it too much (in my opinion). Maybe a 4 Darkness creature with 0/2, and the ability "Hypnotize" costing 5 Darkness and doing 1 damage to itself when used. Hypnotize works like Twin Universe except it destroys the original card (on the opponents side). It is highly simplified to what you suggest but it keeps it to one element (two if you want to Quintessence, three for a Heavy Armor). Maybe the Hypnotize ability could cost Entropy or something other than Darkness/Earth/Quintessence. Just my two cents .

At 0/2 it is vulnerable to almost all creature control on the turn it is played (with the exception of poisons/aflatoxin - which would kill it the next turn or the one after). Lobotomize would also make this card useless, so maybe with Precognition or when against a False God that you know has no creature control. You would have to be clever in when you play this card, ie, timing, support-spells etc.

Luscious Nymph is a very interesting concept also. I guess the Nymph is destroyed once it is devoured? So players with two Otyughs on the board could sort of bypass it.

Eg.
I have a 8/14 Elite Otyugh Quintessenced.
You play Luscious Nymph
I Play 0/3 Otyugh
You have no +hp spells.
I eat your Nymph with my 0/3 Otyugh - giving you a 0/6 Otyugh.
Then I eat your 0/6 Otyugh with my 8/14 Elite Otyugh.

I guess the 'no creatures may be devoured while Nymph is in play' applies to a player eating his own creatures as well?

Alchemic Conjuration, seems a general fun card, for specialized situations ie. Top 50 who have a lot of nymphs already (in the near future) or False Gods/Level 7 Quests. But, as for it's use, I'm still sceptical as to the whole Nymph situation. Time will tell

Shrieking Falcon/Flock... Just what air needs.



All in all, nice ideas Essence!

[Essence]

I have a 8/14 Elite Otyugh Quintessenced.
You play Luscious Nymph
I Play 0/3 Otyugh
You have no +hp spells.
I eat your Nymph with my 0/3 Otyugh - giving you a 0/6 Otyugh.
Then I eat your 0/6 Otyugh with my 8/14 Elite Otyugh.

Yeah, you got it.  That would totally be the win. 

I should also note that the +1/+0 on the Alchemaic Conjuration is permanent -- it's just the Nymph's ability that is 'until end of your next turn'.

[coinich]

I like the Flock and Falcon cards, but it seems as if the Flock is overall weaker than the individual Falcons within; is this what you wanted?

[bobcamel]

I guess that's intended due to coordination issues and limited weakspot space.

[Essence]

Yeah, the Flock is intended to be about twice as powerful as a single Falcon, mostly because I wanted each Falcon to be a decent threat but I didn't want the flock to be obscenely powerful -- and with Dive, it would get obscene pretty fast.  As it is, with a base 8 power upgraded (16 with Dive) it's already pretty absurd.  But then, you have to either get incredibly lucky with Chaos Seed or invest pretty heavily into Aether (making Dive's cost harder to maintain) in order to get a Flock, so that's OK.

[PuppyChow]

Hypnotic Lemure seems pretty OP. Maybe it wouldn't if it got hurt from gravity pull then steals the creature, but as it is, it's basically instant death to your opponent and instant win for you. For a cost of 3 aether, 2 gravity, 3 light, and 5 dark, I can win the game? That has RAINBOW written all over it.

Otherwise, pretty good, but maybe a little complicated.