New Death Knight Spell - Climactic Necrotic Explosion

First, a rant.

This is precisely what I thought would be the problem with the rune system. It keyholes players into playing very specific designs of decks. Most likely team5 already figured out the perfect 25 cards, leaving only 5 flexes. In other words, there's no point debating cards like these - its viability is dependent on the deck's viability. You cant play this card in other archetypes like a second win-con (like how you can fit denathrius into implock for that reason). Its either going to work because rainbow DK works, or its going to be unplayable, because rainbow DK sucks.

This card can literally be played in any DK deck, if not for the rune system. And it might make archetypes like blood, unholy or frost less one dimensional.

As for the card, well, its certainly a finisher. There's a good reason why team5 disabled generating/discovering this card and that reason is because its plain insane. Its either going to outright win you the game or build a board that will do it a turn after.

Will it make rainbow DK playable though? Well, Im not that optimistic but it can happen. If we somehow get a rainbow expensive spell, we might even tempt a Barbaric Sorceress build.

What is randomly improved? Spending a corpse could increase the number summoned or the stats? Both are sure to be pretty high by the time you reach 10 mana, but I hope it's worth being limited to single rune cards for the rest of your deck. Or Frost Queen Sindragosa, but I don't think anybody plays that card.

Not impressed to be honest.

Compare it to Denathrius. It takes forever to become a viable finisher and only really works against slow control decks but against those you'lll rarely get enough damage to just oneshot them and they most likely have a way to deal with the board.

That's not even mentioning the lack of good corpse spenders in Rainbow DK. Corpse Bride and Malignant Horror are the biggest ones  and they aren't great cards right now.

10-mana also seems like a lot compared to Marrowgar for instance.

Seems like a interesting pay-off. This is a finisher for sure, considering you can't discover this card. So you can only use this ONCE per game, so it's gotta end the game. This rewards using corpse pay-offs, which might make it a bit slower than what you probably want. However one thing to not about rainbow DK is that it gets better with each new 1 rune card printed. (Like how Pure paladin gets better with each new paladin card)

I think this card will see play at some point, especially once they print more double rune cards like Frost Queen Sindragosa. Is it good enough right now? Not sure, but Rainbow DK is very close to being a decent/good deck and it's losing nothing during the rotation. So maybe keep a eye out on Rainbow DK.

Build your own Ultimate Infestation. Problem is that a majority of the good corpse spenders are double or triple down on a single rune.

My interest was suddenly nipped in the bud by the realization it is a rainbow DK cards ... Is that really the pay-off for diluting your decklist?

The less legible the band's logo, the more hardcore it is.