New Death Knight Minion - Rimescale Siren

Might be good, but might also be unnecessary. Might of Menethil never really took off despite doing the same thing (while also pushing more face damage), but this is perhaps easier to accomplish than gaining 3 corpses in Frost DK.

However, we've seen this triple spell Nagas and how difficult they can be to juice efficiently, so who knows if this is good enough.

There's some merit to this card. Playing 3 spells isn't all that hard for frost DK and the gameplan is to stall while hitting face. This card allows that.

Might of Menethil never took off largely because its too expensive, and require corpses, meaning its always detracting from your gameplan, needs to be activated, while being clunky for a stall card. This one is one mana cheaper, establishes a body with a paltry requirement.

I can see this being played in some capacity, but its not a meta busting card. More like a card that suits certain metas.

This could easely be better then Might of Menethil because it costs 1 less mana and uses no corpses. Additionally, the spell requirement is easy to trigger in frost DK because that deck generates and copies a lot of spells. I can see this getting played, IF some DK deck needs more freezes which might be very meta dependant. One thing to note though, is that it only costs 1 frost rune which makes it actually quite flexible. I can see some kind of double blood + 1 frost rune DK deck show up and include this in order to stall/greed a little bit in terms of holding removal untill neccesary.

Is this the best they could print to prevent Frost DK's deck to self-build themselves?
A rather minor tweak ..

Great support for sindragosa, but do not think it will be enough. Fair card on its own though.