The Dead of Knight Card Design Competition

This is meant to be a card that creates a new archetype for Frost.
I think it enables some very interesting deckbuilding!

Sai Shadestorm enables slower triple-frost archetypes to exist by giving Death Knights some very strong damage mitigation at the cost of their access to powerful weapons. Sai Shadestorm's downside also poses interesting deckbuilding questions (do you forgo all weapons? can you play one or two low-costed ones?), further reinforcing Death Knight's advanced deckbuilding decisions.

You need to lose 3 Corpses for Arnax to be better than Guild Trader, and even then he's a Legendary and lacks Tradeable's flexibility. Its existence as one of the last cards you'll see before lethal is fairly obvious, but even then I feel it's reasonable, given the rune allotment.

Location adds a trigger after each use. After first use raises one corpse (if corpse is available) each turn. After second use raises two corpses. After four uses (two uses for two locations) raises four corpses. 

Risen zombies do not leave corpse. 

"You wouldn't look great either if you were the first Death Knight"

"This green smog is terrible for me asthma!"

'"Candidate One, what would you say is your greatest strength?" "Brains." "And Candidate Two, what would you say is your greatest weakness?" "Brains."'

Anyone else tired of worrying about hand size with your spells in triple frost DK? Store them as minions for later.

Combination of both board clear and corpse generator. Unholy cards are minion focused so it's not a premium removal tool, but it does let you deal some damage while you advance your own gameplan with cheap Corpse spenders like Battlefield Necromancer and Bonedigger Geist.

A card that let's will select a minion and use its Health instead of mana to play your cards. So if you cast this on a 8-Health minion, and play a 7-Cost cost card, the minion will take 7 damage and you'll pay no mana for it, and then you must play a 1-cost card to deal 1 damage or destroy it to use your mana again. 

Do you know that feeling when you really want to play that Mutanus the Devourer or Patchwerk or Alexandros Mograine before your opponent does, but you have already spent the coin or were forced to prioritise other stuff? Gnash your teeth no longer, Koltira Deathweaver has you covered - as long as you're able to sacrifice enough of your minions before playing him, which is no easy thing to do in triple Blood decks. 

Death Knight really likes Undead minions and Postmortal Servitude gives you more of them to play with. Unholy is the king of Corpse generation, and with 5 Corpses, becomes a cost-efficient method of card generation for them. It's only one Rune though, so it's not too hard to fit into decks specializing in other Runes, and almost all of them should be able to use the card effectively.