The Wretched Spawn

[Guardian]

The Wretched Spawn
3BB
Legendary Creature - Demon
BB, T: Target creature gets -2/-2 until end of turn. If that creature would be sent in a graveyard this turn, remove it from the game instead and put a 1/1 black Spawn token into play under your control.
1/3

The basic idea behind this card is that if a seed is planted and is allowed to sprout, something comes out. And the idea also came from the Cannibal Corpse album with the same same. The demon here plants his seed in it's victim and if the seed is allowed to grow, it destroys the host (remove it from the game), and something spawns from this. Since it is in it's infancy, 1/1 seems about right.

-2/-2 seems very strong so the ability requires a cost which is very black and to prevent abuses, I want it to tap. Since -2/-2 is very strong, you don't want this creature to come into play too quickly, so the CC was chosen accordingly.

Current wording:

The Wretched Spawn
2BB
Legendary Creature - Horror
T: Put a seed counter on target creature.
At the beginning of each player's upkeep, put a seed counter on each creature that has a seed counter.
When a creature has three or more seed counters, remove it from the game and put a 1/1 black Spawn token into play under your control.
1/1

Changes:
- Wording: Illissius
- Creature type: me

[Anusien]

Way way way overpowered.  Compare to Disciple of Tevesh Szat.

For one more mana, you get a much harder to kill creature whose ability is roughly 5 times as useful for killing creatures, AND it makes fodder.

Also, there's no apparent reason for this to be legendary.

[Illissius]

They don't do Demons and names starting with The any more. This does seem awfully small for a Demon, though. I think it could afford to be bigger, especially since most of the time you're just going to be tapping it.

And I see the planting, destroying, and coming out bits, but I don't see the growing. How about:

Evil Seeder

4/4
Flying
, : Put a seed counter on target creature.
At the beginning of each player's upkeep, that player puts a seed counter on each creature he or she controls with a seed counter on it.
When a creature has three or more seed counters on it, remove it from the game and put a 1/1 black Butterfly Imp creature token with flying into play. (Put it into play under your control.)

That's a bit wordy, though.

[Anusien]

For a slightly higher mana cost (3BBB instead of 4BB), you got Visara who just killed things right away.  This does make creatures, but it takes two turns to do so.  I'd be inclined to say it's fine, but why did you give the tapping a mana cost?  If you can get it into play, you can afford to use its ability, and it's a one time per turn deal anyway.

[Guardian]

Could we make something like:
cost, T: Add a "kind" counter on target creature.
cost, T: Remove from the game target creature with a "kind" counter. Put a 1/1 black Spawn token into play.

[Anusien]

Could we make something like:
cost, T: Add a "kind" counter on target creature.
cost, T: Remove from the game target creature with a "kind" counter. Put a 1/1 black Spawn token into play.

That's essentially what this is.

[Illissius]

Could we make something like:
cost, T: Add a "kind" counter on target creature.
cost, T: Remove from the game target creature with a "kind" counter. Put a 1/1 black Spawn token into play.

I thought about something like that, but, asides from being similar to Bounty Hunter, I don't think it fits the flavor. The demon only plants the seeds, which then grow autonomously; the demon isn't involved any further.
But then, you came up with the flavor, so you're free to change it.

For a slightly higher mana cost (3BBB instead of 4BB), you got Visara who just killed things right away.  This does make creatures, but it takes two turns to do so.  I'd be inclined to say it's fine, but why did you give the tapping a mana cost?  If you can get it into play, you can afford to use its ability, and it's a one time per turn deal anyway.

If you're referring to my card (as I assume you are):
- I didn't put too much thought into the specifics of it; it was mainly meant to illustrate the idea. ("Evil Seeder" and "Butterfly Imp" hinted at this.)
- Visara is legendary, and very powerful. I think it's perfectly acceptable if something else isn't on the same power level. (But, as I said, I didn't think about it too hard, so the various numbers are certainly open for juggling).
- It can kill one creature a turn if you don't target the same one, it just takes a couple of turns to kick in. High throughput, high latency.
- I have no clue why I gave the ability a mana cost. The original card had it. Planting evil seeds requires black mana, I suppose.