­Dungeon Geists + Card14051

3/3 blue paralyse. And sacrifice to force spike.

Sacrifice to paralyse? Eh. It works. Kinda very nasty though; since it can't be undone.

Maybe do the "turn into enchantment" thing?

And yes, that's not how haunt worked. It's better.

I believe the keyword you're looking for is "Licid". ;p

Wow, the licid wording is even worse.

There's a reason it was considered a failure. Though I think it may have had more impact if the design team (i.e. "Mark Rosewater") showed more restraint. Licids don't need to be able to turn into creatures again. And they should only be activating at sorcery speed.

Back in the day, I used to use cards like Tempting Licid to block, then jump onto the creature it was blocking, then become a creature again, all in one motion. It was a lot of fun... but it also meant that Tempest block had 12 pseudo-Blinking Spirits. That wasn't what Licids were designed to do.

Auras are usually unplayable. Licids probably just needed the bestow tech of only reverting to a creature when the enchanted creature died. Not really playable if they were just auras with an additional cost of sacrificing a creature

­Pacifism & Control Magic are far from unplayable. It's more a matter of finding good combinations of creatures/auras. Here's an example:

­
Creature - Licid
­: ~ loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. Activate this ability only any time you can cast a sorcery.
Enchanted creature gets +5/+5.
1/3

That's an early blocker, and giant sucker punch late. Sure, the aura is fragile. But not before the creature already performed its early game function.

Here's another example:

­
Creature - Licid
­: ~ loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. Activate this ability only any time you can cast a sorcery.
When enchanted creature leaves the battlefield, draw 3 cards.
2/3

This licid takes advantage of the fact that auras are fragile by nature (it should also be pointed out that if the creature dies before the aura is attached to it, the entire ability fizzles. We don't lose the licid.) Sure, you got to be creative to make licids work. But it isn't hard to find 12 unique designs in a block.