Random DC's

[TheJord]

Post your random DC's here

Role Reversal   
Instant

Exchange the Power and Toughness
of target attacking creature with a
creature blocking it

[SomeRandomDude]

Needs to be more expensive. IMO, it should be Blue and Red.

Ether Shatter  2
Enchantment
Creature spells and artifact spells cannot be played.

[TheJord]

I thought it would work better with as it helps small crits. A cross... strong crit with a sac ability.

Kithkin Devastator
Creature
3/3

, Sacrifice Kithkin Devastator: Destroy
target non-creature permanent
An outcast, but called upon when need
need was great

[Gate Troll]

Here's my first step into the world of Magic DC's:

Volcano
Sorcery                         
Sacrifice X untapped Mountains.
Damage target player X times.

Or should it be:

Volcano
Sorcery                         
Sacrifice X untapped Mountains.
Target player receives X damage.

[FM]

Actually, it'd be:

Volcano Blast (Volcano is more of a Land name, they wouldn't waste it on a spell)
Sorcery
As an additional cost to play Volcano Blast, sacrifice X untapped Mountains.
Volcano Blast deals X damage to target player.
C

It sucks as a card, btw, but you'll soon figure that out yourself. It could EASILY cost a single red mana, with that steep additional cost.

[Thranduil]

I think it would be fine and cleaner without the "untapped" restriction. And it could certainly be cheaper as FM pointed out. Tis cool though!

Thranduil